Selling S&S Activewear on Shopify: A Complete Guide

If you sell apparel on Shopify, S&S Activewear is one of the few wholesalers that can carry an entire store on its own. More than 100 brands, deep stock across every major silhouette, and a U.S. distribution network with one-day ground shipping to 41 states make it the default supplier for a large share of decorators, team-store operators, corporate teams, fitness brands, school athletic programs, band-merch sellers, corporate merch shops, and dropshippers.

Getting that catalog into Shopify the right way sounds intimidating: tens of thousands of styles, hundreds of thousands of variants, multi-warehouse inventory, daily price changes, dropship rules, and Shopify's own variant and image limits. The good news — and the reason this guide exists — is that you do not have to solve any of that yourself. Supply Master is built specifically for this connection. You enter your S&S credentials once, choose which slice of the catalog you want, set a price formula, and the entire integration — products, variants, images, inventory, pricing, and orders — runs on autopilot inside Shopify.

This guide is for Shopify merchants evaluating how to bring S&S Activewear into their store. It covers what S&S sells, the parts of the integration that would be hard if you did them by hand, and how Supply Master makes each of those parts simple. Where Supply Master fits in, we say so plainly.

The short version: S&S Activewear is North America's largest blank apparel distributor — 100+ brands, roughly 200,000 variants, and a U.S. warehouse network designed for one-day delivery. Supply Master connects your Shopify store to it in minutes, then runs the entire integration — products, variants, images, inventory, pricing, and dropship orders — on autopilot from then on. Start the free trial on the Shopify App Store or email support@comstack.com to have the team set it up for you.

Who S&S Activewear Is, and Why So Many Stores Source From Them

S&S Activewear is a U.S. and Canada wholesale apparel and accessory distributor headquartered in Bolingbrook, Illinois, founded in 1988. It is one of the largest blank apparel distributors in North America, with more than 4 million square feet of warehouse space and a distribution network designed to reach a large share of the U.S. population in one to two business days from order placement.

Three things matter to a Shopify merchant evaluating S&S as a supplier:

Scale and breadth. S&S carries more than 100 brands, spanning basic blanks, premium fashion blanks, performance, fleece, headwear, bags, outerwear, and accessories. It is the exclusive distributor of adidas, Columbia, and Under Armour in the wholesale channel.
Distribution speed. A multi-warehouse U.S. footprint with major facilities in Reno, Fort Worth, Olathe, Lockport, Robbinsville, Reading, McDonough, Orlando, Cincinnati, and others, with a 2026 network consolidation underway. S&S advertises one-day ground shipping to 41 states from this network, so most accounts can quote one- or two-day delivery to their customer base.
A real B2B data system. S&S exposes a REST API authenticated with an Account Number as username and an API Key, with rate-limited access to product, inventory, and pricing data, and supports order placement and tracking back.

That last point is what makes S&S a good Shopify supplier rather than just a good catalog. The data is structured, fresh, and addressable — which is the precondition for a clean import and reliable sync.

What's actually in the catalog

The S&S catalog is broad enough that you should treat it as several catalogs in one:

Mainstream blanks. Gildan, Hanes, Champion, Comfort Colors, Next Level Apparel, Bella+Canvas, Jerzees, American Apparel.
Premium and fashion blanks. Bella+Canvas premium lines, Allmade, Independent Trading Co.
Performance and athletic. adidas, Under Armour, Champion performance, Puma Golf, Sport-Tek alternatives, Holloway alternatives in the S&S-owned line.
Headwear. Richardson, Flexfit, Yupoong, Outdoor Cap, Atlantis Headwear, plus team and lifestyle silhouettes.
S&S-owned brands. Tultex, AllPro, CORE365, TEAM 365, Harriton, Devon & Jones, North End — important for margin and exclusivity programs.
Outdoor and workwear. Columbia, Marmot, Carhartt-adjacent options, fleece, jackets, and shells.
Bags, accessories, and decorator-friendly add-ons.

If you are evaluating S&S, the right question is not "is the catalog big enough?" — it almost certainly is — but "which slice of this catalog actually belongs in my Shopify store?" That question becomes the central design decision for the integration.

What Makes the S&S Products Catalog Complex — and How Supply Master Handles Each Piece

Before walking through the workflow, it is worth being honest about what an S&S integration actually has to do. None of this is work you will do — Supply Master takes a clear position on every one of these problems and runs them in the background. The list below is just so you can see what is being handled for you, and so you can size up other tools you may be evaluating against the same checklist.

Products catalog volume

The full S&S catalog runs to roughly 200,000 variants once you account for every style × color × size combination. Even a curated subset — say, Gildan, Bella+Canvas, Comfort Colors, and a handful of fleece styles — can easily produce tens of thousands of variants. Manual CSV work breaks down at this scale, and ad-hoc scripts get fragile fast when prices and inventory move daily. Supply Master handles this volume natively: you pick your filter, click import, and the full set lands in Shopify with images, variants, and pricing already in place.

Multi-warehouse inventory

S&S inventory is not a single number. Each variant has stock at multiple warehouses, and what you actually want to expose to Shopify depends on your model:

Dropshippers typically want to expose total available stock across the warehouse network so customers can buy anything in stock anywhere.
Decorators with their own location usually want to filter to one or two warehouses they ship from to avoid quoting stock they cannot consolidate.
Multi-location merchants want to map S&S warehouses to specific Shopify locations so fulfillment routing works correctly inside Shopify.

All three patterns are first-class settings in Supply Master — you pick one in the Inventory Settings tab and never touch it again. No spreadsheets, no warehouse mapping scripts.

Pricing logic

S&S exposes piece price, dozen price, case price, sale price, MAP price, and customer-specific pricing. Your Shopify price almost never equals any of these directly. You usually need a markup formula (percent, tiered, flat fee), a price floor, MAP-aware logic for protected brands, and rounding rules — and it has to recalculate every sync. In Supply Master, this is one Liquid expression on the Price field. You write it once; it runs on every sync forever, and S&S price changes flow through with margin intact automatically.

Variants, images, and product structure

A single S&S style can have dozens of colors and a full size run. Shopify's modern variant ceiling is generous (2,048 per product), but there are still decisions to make:

Whether to import every color and size as variants on one product, or split by color into linked products.
Which images to import per variant — front model, side, back, swatch, color-on-model.
Whether to keep S&S titles and descriptions or generate cleaner SEO-optimized versions.
How to handle new variants and new colors that appear after the initial import.

Supply Master ships with sensible defaults for all of these out of the box, plus simple toggles if you want to override. Most stores never need to change them.

Dropship fulfillment

If you are dropshipping, you need orders to flow back to S&S, with the right warehouse, the right shipping method, the right payment account, and the right billing email. You also need tracking back into Shopify so customers get notified. Manual order entry into the S&S portal does not scale past a handful of orders a day. Supply Master automates the whole loop: eligible Shopify orders are placed with S&S on a schedule, tracking comes back into Shopify automatically, and customer notifications go out as if you fulfilled them yourself.

Updates after launch

The first import is the easy part of any integration. The harder part is the second month — when colors get added, prices shift, items go on closeout, and you need new variants on existing products without overwriting your custom titles, descriptions, or photos. Supply Master is designed for that ongoing state. Per-supplier sync schedules, granular update settings (everything, inventory only, variant fields only, etc.), and configurable rules for new products and new variants mean the catalog quietly maintains itself once it is set up.

The point of this section is not to make S&S look hard — it is to make clear that Supply Master is built for exactly this list. The next sections walk through the four small decisions you actually make on the way to going live; everything else runs in the background.

How Supply Master Makes the S&S Activewear Integration Simple

Supply Master is a Shopify app built specifically for connecting wholesale suppliers like S&S Activewear to Shopify stores. S&S is the most-used supplier on the platform, and the setup is intentionally short. Most stores are live in under an hour, and once it is live it runs unattended.

You only really make four decisions during setup. Everything else has a sensible default:

Which slice of the S&S catalog you want to sell — by brand, category, style, color, or size.
How inventory should map to your Shopify locations — combined, filtered to specific warehouses, or one-to-one.
What your price formula is — a single Liquid expression that re-runs on every sync.
How orders should flow back to S&S — fully automatic, scheduled, manual, or off.

Make those four choices, click save, and the catalog imports, syncs, and fulfills on its own. The rest of this guide walks each decision in plain terms, then covers add-ons (AI+ enrichment, variant splitting), use cases, and how to get started.

Step 1: Import Only the S&S Products Catalog You Actually Want to Sell

The single biggest mistake merchants make with a wholesaler the size of S&S is importing too much. A bloated Shopify catalog is slower to merchandise, harder to search, more expensive to enrich with AI, and worse for SEO.

Supply Master's filter system is designed to do the curation work before products ever land in Shopify. You can filter the S&S catalog by any combination of:

Brand — e.g., import only Gildan, Bella+Canvas, Comfort Colors, and Next Level Apparel.
Style number or unique style name — for narrow catalogs built around hero styles.
Category and base category — t-shirts, fleece, headwear, polos, outerwear.
Color name and color group — drop white-only stores, or curate by color family.
Size name and size order — adult sizes only, or include youth.
Price thresholds — exclude items below a margin floor or above a customer ceiling.
New styles, MAP-protected items, closeouts — treat them as separate inclusion rules.

Filters use And / Or logic, support multi-value lists (Black, White, Red), and have a live preview pane that shows exactly which products and variants will be imported before you commit.

A typical curated build for a screen-printer's blanks store ends up being a few thousand variants — not tens of thousands. That decision pays back every month in faster syncs, lower Shopify storage and indexing cost, and a cleaner customer-facing catalog.

Step 2: Keep S&S Inventory and Pricing Synced — by Warehouse

Once products are in Shopify, the integration shifts from import to ongoing sync. Two things change daily and have to be right: inventory levels and prices.

Inventory by warehouse

Supply Master pulls S&S warehouse-level inventory and lets you decide how to expose it to Shopify:

Combine all warehouses into a single Shopify location's stock count (typical for dropshippers).
Use specific warehouses only — for example, only Reading, PA and Olathe, KS if those are the regions you ship to.
Map S&S warehouses to specific Shopify locations, so multi-location stores fulfill from the closest stock.
Apply a safety-stock buffer (e.g., subtract 5 units per variant) so you do not oversell on the last unit.
Exclude dropship-only stock if you only want to count owned-warehouse inventory.

This is configured under Edit Supplier > Inventory Settings. The setting most dropshippers want is "All except dropship," which gives you the broad stock view S&S customers see in the portal.

Pricing logic that recalculates every sync

Pricing is configured under Edit Supplier > Product Settings > Match Fields, on the field mapped to Shopify's Price. You can write Liquid formulas that reference any S&S field — piecePrice, dozenPrice, casePrice, salePrice, mapPrice, customerPrice — and apply transformations.

A few patterns merchants use most often with S&S:

# Flat 50% markup on piece price
{{ variant.piecePrice | times: 1.5 | round: 2 }}

# Markup plus a flat decoration fee
{{ variant.piecePrice | times: 1.5 | plus: 4 }}

# Tiered markup — higher % on cheaper items, lower % on premium
{% assign p = variant.piecePrice %}
{% if p <= 5 %}{{ p | times: 1.8 | round: 2 }}
{% elsif p <= 15 %}{{ p | times: 1.5 | round: 2 }}
{% else %}{{ p | times: 1.3 | round: 2 }}
{% endif %}

# MAP-respecting fallback chain
{{ variant.mapPrice | default: variant.salePrice | default: variant.piecePrice | times: 1.4 | round: 2 }}

These formulas re-run every sync, so when S&S adjusts wholesale pricing — which happens regularly — your retail prices update automatically with margin intact.

Sync schedule

Under Edit Supplier > Automatic Sync, you set how often the supplier syncs (daily, every 6 hours, etc.) and what fields each sync touches (everything, inventory only, inventory + price). A common production setup is:

Daily full sync — products, variants, images, inventory, pricing.
More frequent inventory-only refreshes if you sell fast-moving styles.

Every sync is logged in Sync History with the row count, type, status, and any errors.

Step 3: Control Variants, Fields, and Content

S&S's raw data is good, but it is supplier data — not Shopify storefront copy. Supply Master's field mapping layer is where you bridge the two.

Match Fields

Map any S&S source field to any Shopify destination field. The most common decisions:

Title — keep S&S title, or rebuild it as {{ brandName }} {{ styleName }} for cleaner SEO.
Description — use the supplied description, or run it through AI+ for a structured, bulleted version.
Vendor — usually brandName so Shopify's brand filtering works.
Tags — categories, base category, color group, size group.
Barcode (GTIN), SKU, weight, country of origin — direct passthrough is fine.
Images — choose which color images attach to which variants (front model, swatch, on-model).

For the full list of S&S fields available to map, see Available Supplier Data Fields.

Variant structure

Modern Shopify stores support up to 2,048 variants per product, which is enough to hold even the biggest S&S styles as a single product with every color × size combination. For most merchants, that is the right answer — one product per S&S style, with color and size as the two option axes.

Supply Master also has a legacy variant splitting mode for stores that prefer one product per color (linked together for navigation), which was historically necessary under Shopify's 100-variant cap and is still useful for stores that merchandise color as the primary product entity.

AI+ enriched data

For a one-time per-supplier add-on, AI+ generates SEO titles, meta descriptions, multiple description formats (short, medium, long, bulleted), Shopify product categories, tags, and cleaned handles for the entire S&S catalog. These become additional fields you can map in Match Fields, with sensible defaults wired up out of the box.

For S&S specifically, AI+ is the difference between importing 5,000 supplier-formatted descriptions and importing 5,000 storefront-ready descriptions. Most teams enable it for the brands they actually sell.

Step 4: Forward Orders to S&S for Dropship Fulfillment

If you do not customize products before shipping — i.e., you are running a dropship model on the S&S catalog — Supply Master can forward Shopify orders to S&S automatically and sync tracking back. This is one of the integrations that S&S supports through their order API, and it is the workflow most pure resellers want.

Configured under Edit Supplier > Order Settings, with these options:

Setting: Setting | Behavior: Behavior
Setting: Automatically Fulfill Orders | Behavior: Eligible Shopify orders are placed with S&S every ~30 minutes.
Setting: Fulfill Orders at Scheduled Time | Behavior: Orders placed once per day after a chosen local time.
Setting: Manually Fulfill Orders | Behavior: Orders captured in Supply Master as Pending; you click Submit Now when ready.
Setting: Disabled | Behavior: Inventory and product sync only; orders are managed outside Supply Master.

You also set:

Warehouse Selection — Auto Select (S&S picks), From Fulfillment Locations (uses the Shopify fulfillment location → S&S warehouse mapping), or From Line Item Properties (reads a warehouse property per line item).
Shipping Method — default is Cheapest (S&S picks the lowest-cost ground option). You can pin to UPS Ground, FedEx Ground, expedited services, will-call pickup, etc.
Order Payment — billing profile email if S&S charges your card on file, or Credit if you have an approved credit account.

For the workflow detail, including how to handle holds, manual submissions, payment errors, and warehouse routing failures, see Supply Master's Syncing Orders with S&S Activewear article.

For decorators who customize before shipping (screen printing, embroidery, heat transfer), automated order consolidation and decorator order flows are on the Supply Master roadmap as an upcoming feature. The plan is to let decorators batch eligible Shopify orders, consolidate the underlying S&S line items across orders (so you order one case of a popular blank instead of ten singles), and forward a single consolidated purchase order to S&S that ships to your shop for decoration — with the original Shopify orders still tracked individually for fulfillment back to the customer. Until that ships, the recommended workflow is to keep product and inventory sync on, set Order Sync to Disabled, and place purchase orders with S&S the way you do today. The integration still earns its keep on the data side.

How Different Kinds of Stores Use S&S Activewear on Shopify

The S&S catalog is broad, but the Supply Master setup is the same screen for every business — only a few toggles change. Here are five common patterns and exactly how they configure them. Each one is set up once and then runs hands-off.

1. Decorator stores (screen print, embroidery, DTG, heat transfer)

Catalog: Curated to a few hero brands and silhouettes you actually decorate well — typically Gildan 5000/64000, Bella+Canvas 3001, Comfort Colors 1717, plus a fleece and a polo line. One filter, set once.
Inventory: All non-dropship warehouses combined, with a safety buffer so you never quote stock you can't consolidate. Refreshes automatically.
Pricing: Markup formula on piecePrice, with a floor that protects against ultra-cheap blanks pricing below your minimum job size. Recalculates on every sync.
Orders: Product and inventory sync run on autopilot; orders go through your existing PO process today. Automated order consolidation and decorator order flows are an upcoming Supply Master feature built for exactly this model — batch and consolidate Shopify orders into a single S&S purchase order shipped to your shop for decoration, with per-customer fulfillment tracked back in Shopify.

2. Dropship resale stores (no customization)

Catalog: Broader — full brands or full categories, often with AI+ enrichment for storefront-ready copy out of the box.
Inventory: All warehouses combined, dropship stock included. Auto-refresh.
Pricing: Tiered markup, MAP-respecting fallback for protected brands. Set once.
Orders: Automatically Fulfill Orders with Cheapest shipping. Orders post to S&S on a 30-minute cadence, tracking flows back into Shopify automatically — fully hands-off.

3. Team and program stores

Catalog: Specific styles and colors a team or organization picked, locked down so no surprise variants appear mid-season.
Variant control: No New Variants on Existing Products keeps the program SKU set fixed automatically.
Inventory: Filtered to the warehouse closest to the team's region for fastest delivery.
Orders: Scheduled batch fulfillment after a team-store window closes — set the time once, Supply Master places the orders for you.

4. Corporate merch and company stores

Catalog: A small set of pre-approved branded items per company — for example, Columbia outerwear, adidas polos, Devon & Jones layering, and a Richardson cap.
Field mapping: Custom titles and descriptions per item; inventory and price still sync from S&S in the background.
Orders: Dropship with Auto Select Warehouse, payment via the billing email or approved credit. Once set up, employee orders flow straight through.

5. Multi-supplier merchants

Setup: S&S is one of several connected suppliers (alongside SanMar, Augusta, Cap America, OTTO, ACC, JDS, Edwards, etc.). Each gets its own credentials, filters, mappings, sync schedule, and order rules — none of them interfere with each other.
Workflow: One Supply Master install, one Sync History dashboard, one set of conventions across all suppliers. Add or remove a supplier without touching the rest.

The common thread across all five: configure once on the supplier screen, then leave it alone. Supply Master handles the daily catalog, inventory, pricing, and order work in the background — and surfaces anything that needs your attention in Sync History or App Orders.

Try It On Your Store

Supply Master is built and supported by Comstack, and is the top-rated Shopify app for apparel-supplier integration in the U.S. and Canada . It is available with a free trial so you can connect S&S Activewear to your store and run a real import before committing to a plan. Plans are sized to variant count and monthly update volume, so the right tier depends on how much of the S&S catalog you bring in and how often you sync.

Two of the fastest ways to get started:

Install Supply Master from the Shopify App Store and start the free trial: apps.shopify.com/supply-master.
Email the Comstack team at support@comstack.com with your S&S use case (decorator, dropshipper, team store, multi-supplier, etc.) — they can recommend the right setup, walk you through credential and warehouse configuration, and in many cases handle the entire S&S onboarding on your behalf.

Frequently Asked Questions

How long does it take to get S&S running on my Shopify store?

Most stores are live in well under an hour. You enter your S&S Account Number and API Key, pick the brands or styles you want, set a price formula, and click import — the catalog, images, variants, inventory, and pricing all flow into Shopify automatically. The Comstack team can also do the entire setup for you on request.

Do I need an S&S Activewear account first?

Yes — Supply Master is the integration layer, so you keep your existing wholesale relationship with S&S. If you already have an account, you only need an API Key (free; request it from your S&S rep or api@ssactivewear.com). Once you have it, setup in Supply Master is a few minutes.

Can I import only specific S&S brands — like Gildan and Bella+Canvas only?

Yes — that is the recommended pattern. Use Brand Name as a product filter with Contains Any and a comma-separated list (Gildan, Bella+Canvas, Comfort Colors, Next Level Apparel). Only matching products import, and only those count toward your Supply Master plan.

Will the catalog stay up to date automatically as S&S adds new colors and styles?

Yes — that is the default behavior, and you have full control over it. The Auto Create Products & Variants setting lets you choose:

Always Create Products & Variants — new styles, colors, and sizes are added automatically (default).
No New Variants on Existing Products — locked variant set on existing products; new styles can still come in.
No New Products — only new variants on products you already import.
No New Products or Variants — only field updates; the catalog is frozen.

Same idea for inventory and pricing — they refresh on the schedule you pick (daily is typical), with no intervention needed.

Does the integration work for SanMar, AlphaBroder, and other suppliers too?

Yes. Supply Master connects to 15 wholesale suppliers including SanMar (US and Canada), AlphaBroder, Augusta Sportswear (Momentec), Cap America, OTTO CAP, Edwards, Atlantic Coast Cotton, JDS Industries, Scrub Authority, AS Colour (US), CHAMPRO, Decky, and Goldstar — plus a Custom Supplier option for file-based imports. You can run S&S on its own or alongside any combination of the others, all from the same Supply Master install.

Can I sync S&S inventory to multiple Shopify locations?

Yes — out of the box. Map specific S&S warehouses to specific Shopify locations in Inventory Settings, and Supply Master writes each warehouse's stock to the matching location automatically.

Can I keep my own custom titles, descriptions, and images and only let S&S update inventory and price?

Yes. Set Update Settings to Variant Fields Only or Inventory Only on the Automatic Sync tab, and future syncs refresh stock and price while leaving your custom titles, descriptions, and images untouched. This is the standard pattern for stores that have hand-built product pages.

How long does the first S&S import take?

Curated catalogs of a few thousand variants usually import in minutes. Larger multi-brand imports run in the background and you can watch them in Sync History — there is nothing to babysit.

What if S&S runs out of stock on something a customer ordered?

You have two layers of protection. The inventory adjustment buffer subtracts a safety stock amount per variant so you stop selling before S&S hits zero, which prevents most overselling outright. If something does slip through, Supply Master shows it clearly in the App Orders view with the supplier's reason, so you can refund or substitute in one place rather than discovering the issue inside the S&S portal later.

Where to Go Next

If you are evaluating whether to put S&S Activewear on Shopify through Supply Master, the most useful next steps are:

Install Supply Master from the Shopify App Store and start the free trial.
Read the Getting Started with Supply Master guide to walk the full setup end-to-end.
See the full Supported Suppliers and Features comparison if you also source from SanMar, AlphaBroder, Augusta, or others.
Review the Available Supplier Data Fields reference to see exactly which S&S fields are addressable in Match Fields, filters, and Liquid formulas.

S&S Activewear is a serious wholesale catalog, but with Supply Master it does not have to feel like one. The four decisions — what to import, how to map inventory, your price formula, and how orders flow — are all configured in one supplier screen, usually in well under an hour. After that, the catalog runs on autopilot: products import, inventory and pricing refresh on schedule, and dropship orders place themselves. Stop data managing, and start merchandising.

Key Takeaways

Mainstream blanks. Gildan, Hanes, Champion, Comfort Colors, Next Level Apparel, Bella+Canvas, Jerzees, American Apparel.
Premium and fashion blanks. Bella+Canvas premium lines, Allmade, Independent Trading Co.
Performance and athletic. adidas, Under Armour, Champion performance, Puma Golf, Sport-Tek alternatives, Holloway alternatives in the S&S-owned line.
Headwear. Richardson, Flexfit, Yupoong, Outdoor Cap, Atlantis Headwear, plus team and lifestyle silhouettes.
S&S-owned brands. Tultex, AllPro, CORE365, TEAM 365, Harriton, Devon & Jones, North End — important for margin and exclusivity programs.

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