S&S Activewear on Shopify: The Largest US Apparel Wholesaler
Selling S&S Activewear on Shopify: A Complete Guide to Importing the Products Catalog, Syncing Inventory, and Fulfilling Orders
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.
Key Takeaways
- What S&S Activewear is — North America's largest blank apparel distributor, headquartered in Bolingbrook, Illinois (founded 1988), with more than 4 million square feet of warehouse space and a U.S. network designed for one- to two-day delivery to most of the country.
- What S&S sells, in one line — 100+ brands spanning mainstream blanks, premium fashion blanks, performance and athletic, headwear, S&S-owned brands, outdoor and workwear, and bags and accessories — roughly 200,000 variants once you account for every style × color × size combination.
- Setup with Supply Master — connect with your S&S Account Number and API Key (credentials required); pick your catalog slice, inventory mapping, and price formula; most stores are live in well under an hour.
- Day-to-day — products, variants, images, inventory, and pricing refresh on your sync schedule; dropship orders can post to S&S automatically with tracking back into Shopify.
- Order sync note — decorators who customize before shipping keep product and inventory sync on autopilot today; automated order consolidation for decorator workflows is on the Supply Master roadmap.
- Trust anchor — Supply Master is the 5.0★ top-rated apparel-supplier integration on the Shopify App Store in the U.S. and Canada; Comstack will set the integration up for you on request.
- Try it now — Start the free trial on the Shopify App Store or email support@comstack.com and the Comstack team will set it up for you.
See It Live in Under a Minute
Filter the S&S catalog, set pricing, import products, and browse the live storefront — in about a minute.
---Table of Contents
- See It Live in Under a Minute
- Who S&S Activewear Is, and Why So Many Stores Source From Them
- What's Actually in the S&S Activewear Catalog
- What Makes the S&S Products Catalog Complex — and How Supply Master Handles Each Piece
- How Supply Master Makes the S&S Activewear Integration Simple
- What Runs on Autopilot for S&S Activewear
- How Different Kinds of Stores Use S&S Activewear on Shopify
- Try It On Your Store
- Frequently Asked Questions
- Where to Go Next
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 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.
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 does the curation work before products ever land in Shopify — by brand, style number, category, color, size, price threshold, MAP-protected items, closeouts, and more, with And / Or logic and a live preview pane. A typical curated build for a screen-printer's blanks store ends up being a few thousand variants — not tens of thousands.
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 — combine all warehouses, use specific warehouses only, map warehouses to Shopify locations, apply a safety-stock buffer, or exclude dropship-only stock. You pick one in the Inventory Settings tab and never touch it again.
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; whether to keep S&S titles and descriptions or generate cleaner SEO-optimized versions; and 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.
Dropship fulfillment
If you are dropshipping, you need orders to flow back to S&S, with the right warehouse, shipping method, payment account, and billing email — plus 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.
How Supply Master Makes the S&S Activewear Integration Simple
Prefer a step-by-step walkthrough? Watch the full S&S Activewear setup on YouTube.
Supply Master is a Shopify app built specifically for connecting wholesale suppliers like S&S Activewear to Shopify stores — the 5.0★ top-rated apparel-supplier integration on Shopify in the U.S. and Canada. 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.
What Runs on Autopilot for S&S Activewear
Once those four decisions are made, every part of the integration that would be hard by hand is handled in the background. The headline capabilities — and the deep-dive help docs:
- Curate the catalog before it lands in Shopify. Filter by brand, style number, category, color, size, price threshold, MAP-protected items, and closeouts — with And / Or logic and a live preview pane so you see exactly what will import before you commit. (Mapping supplier fields to Shopify →)
- Inventory stays current by warehouse. Combined stock across the network, filtered to specific warehouses, or mapped one-to-one to Shopify locations — plus an optional safety-stock buffer so you stop selling before S&S hits zero. (How automatic syncing works →)
- Pricing recalculates every sync. Markup formulas referencing
piecePrice,dozenPrice,casePrice,salePrice,mapPrice,retailPrice, andcustomerPrice— tiered markup, MAP-respecting fallback chains, decoration-fee bumps, and rounding rules all in one Liquid expression. (Customizing fields with Liquid formulas →) - Catalog text, images, and tags ready to publish. Titles rebuilt for SEO (
{{ brandName }} {{ styleName }}), descriptions, vendor (brandNamefor Shopify brand filtering), tags by category and color group, SKUs, barcodes, weights, and front-model, swatch, and on-model images all land in the right Shopify fields. - Choose how each style shows up in your store. One product per style with color and size pickers (the default for most merchants), or one product per color via variant splitting (legacy) for stores that merchandise color as the primary product entity.
- AI+ rewrites supplier copy for your storefront. For a one-time per-supplier add-on, AI+ generates SEO titles, meta descriptions, multiple description formats, Shopify product categories, tags, and cleaned handles — the difference between importing 5,000 supplier-formatted descriptions and 5,000 storefront-ready descriptions. (AI+ enriched product data →)
- Dropship orders post to S&S on a schedule. Eligible Shopify orders place automatically (~30 minutes), on a daily schedule, or manually when you click Submit Now — with warehouse selection, shipping method, and payment profile configured once. Tracking flows back into Shopify. (Syncing Orders with S&S Activewear →)
Where the integration ends — and where the decorator workflow starts
For decorators who customize before shipping (screen printing, embroidery, heat transfer), automated order consolidation and decorator order flows are on the Supply Master roadmap. The plan is to let decorators batch eligible Shopify orders, consolidate the underlying S&S line items across orders, 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 merchants who run on it cluster into a handful of recognizable archetypes. Here are five common patterns and what the storefront looks like for each.
1. Decorator stores (screen print, embroidery, DTG, heat transfer)
A screen-print or embroidery shop runs a curated blanks storefront built around the hero styles it decorates best.
- Catalog: Gildan 5000/64000, Bella+Canvas 3001, Comfort Colors 1717, plus a fleece and a polo line — one brand-and-style filter, set once.
- Field mapping: Markup formula on
piecePricewith a floor that protects against ultra-cheap blanks pricing below your minimum job size; titles rebuilt as{{ brandName }} {{ styleName }}for cleaner SEO. - Orders: Product and inventory sync run on autopilot; purchase orders go through your existing workflow today. Automated order consolidation for decorator workflows is an upcoming Supply Master feature.
2. Dropship resale stores (no customization)
A pure reseller runs a broader storefront with no in-house decoration — orders ship straight from S&S to the end customer.
- Catalog: Full brands or full categories, often with AI+ enrichment for storefront-ready copy out of the box.
- Field mapping: Tiered markup with MAP-respecting fallback for protected brands; all warehouses combined with dropship stock included.
- 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
A school athletic program or youth league runs a locked-down storefront with a fixed SKU set for the season.
- Catalog: Specific styles and colors the team picked — no surprise variants appearing mid-season.
- Field mapping: No New Variants on Existing Products keeps the program SKU set fixed; inventory filtered to the warehouse closest to the team's region.
- 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
A company runs an employee gear program with a small set of pre-approved branded items.
- Catalog: Columbia outerwear, adidas polos, Devon & Jones layering, and a Richardson cap — a tightly curated corporate assortment.
- 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. Employee orders flow straight through once configured.
5. Multi-supplier merchants
An apparel retailer sources from S&S alongside SanMar, Augusta, Cap America, OTTO, and others — all from one Supply Master install.
- Catalog: S&S is one of several connected suppliers, each with its own credentials, filters, mappings, sync schedule, and order rules — none of them interfere with each other.
- Field mapping: Per-supplier conventions across all connections; one Sync History dashboard for the whole operation.
- Orders: S&S dropship orders automate independently; other suppliers follow their own order rules on the same install.
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 5.0★ 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.
Related reading
- Buyer's Guide: How to Evaluate a Shopify Supplier Integration App — the nine criteria for picking a supplier integration app, with a checklist that maps to every Supply Master capability.
- FTP, SFTP, REST, PromoStandards: The Four Ways Apparel Suppliers Hand You Data to Sell on Shopify — where S&S Activewear (REST API) sits in the data-shape landscape, and why it matters for refresh cadence.
- Beyond CSV Hell: The Definitive Guide to S&S Activewear and Shopify Integration — long-form deep dive on moving past CSV imports to real-time sync.
- Best Shopify App to Import Products from SS Activewear & SanMar — head-to-head approach comparison for the two largest U.S. apparel suppliers.
- Multi-Warehouse Inventory on Shopify: Combine, Filter, or Map? — the three patterns for handling S&S's eight-warehouse stock across Shopify locations.
- First Hour with Supply Master on S&S Activewear — narrative setup walk-through that takes a brand-new install live in under an hour.
- Automate Shopify Dropship Orders Without Touching the Supplier Portal — end-to-end automation for the hands-off dropship loop on S&S, including blind shipping and tracking sync.
- Run Decorator Jobs and Dropship Orders from One Store, Without Mixing Them Up — per-supplier configuration for hybrid in-house decoration plus dropship workflows.
- Get Your Supply Master Catalog Ready for Black Friday in Four Weekends — pre-BFCM playbook covering inventory buffer, sync cadence, MAP floor, and image readiness.
- Make Every Supplier's Catalog Read Like Your Brand — per-supplier brand-voice playbook with named patterns for streetwear, performance, and corporate-merch storefronts on S&S.
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.
- Watch the full S&S Activewear setup walkthrough on YouTube — connect credentials, filters, pricing, and import step by step.
- 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 North America's largest blank apparel catalog — 100+ brands, roughly 200,000 variants, and a warehouse network built for one-day ground to 41 states — but with Supply Master it does not have to feel like one. Connect your credentials, pick your catalog slice, set your price formula, and the integration runs on autopilot from there. Stop managing data, and start merchandising.
