Updated October 2026
Clothing brands don't stock designs. They stock every size, color and style of every design, and each one has to be stored, counted and shipped on its own.
Variant inventory management tracks clothing stock by size, color and style instead of by design. At Fulfillment.com it rests on four practices:
By The Fulfillment.com team
In apparel, a design is not a SKU. Every size, color and style you sell is its own SKU, and the count climbs quickly. Twenty designs in five sizes and three colors make 300 active SKUs. A full seasonal line runs into the thousands, and most of those sell slowly and sit next to a bin that looks just like them. Apparel carries more SKUs than most ecommerce categories as a result. A system that counts stock by design can't tell you whether you have a medium in green.
Take a medium and a large of the same tee. Sealed in their polybags, they look identical from arm's length. They are still different units from the day they arrive, and each has to be tracked as itself from our dock to the carrier. If the wrong one ships, the customer sends it back. By then the count on the shelf is off too, and your store shows stock that can't be shipped.
Every size, color and style gets its own barcoded bin, so the variants of one design never share a shelf spot. Each bin has its own label, and the system tells variants apart by barcode instead of by a picker's eye. Everything else depends on this, because a variant without its own bin can't be picked, counted or restocked on its own. Some garments crease easily and need to be folded flat or hung. Tell us which ones when you ask for a quote and we'll confirm how we'd store them.
Putting each variant in the right bin is half the job. The other half is checking it on the way out. We scan every order when it's picked and again when it's packed, so the barcode is checked twice before the parcel is sealed. The second scan is there for the polybag mix-up, where the style matches but the size or color is wrong and nobody can see the difference. A pick with one scan or none leaves that call to the picker's eye, and across thousands of look-alike SKUs an eye will miss some.
Stock counts drift over time. In apparel they drift most among the slow sellers nobody looks at. Cycle counts are scanned recounts of stock where it sits, done a section at a time all year rather than in one big shutdown at year end. We run them in Deposco. They find a miscounted size before your store keeps selling stock that isn't there. When most of your SKUs sell slowly, regular recounts are what keep those numbers usable.
Accurate counts don't help if the same unit is counted twice. Orders from every channel draw on one pool of stock in BestOMS. A unit of a given size and color is counted once, so it can be sold once, whether the order comes from your own store, a marketplace or a retail account. Keeping separate stock for each channel is how one size ends up sold twice. This single pool is what our omnichannel fulfillment service runs on.
Tracking thousands of look-alike variants by hand is where apparel stock goes wrong.
Getting the size and color right also shapes two of apparel's biggest costs. A deep catalog of slow sellers costs a lot to store, because every slow size and color takes up a bin, and that shows up on your bill. Our guide to apparel fulfillment cost covers storage and the other main costs.
It matters for returns too. A customer who gets the wrong size will almost always send it back, so shipping the right one the first time can potentially head off a return. When a return does come in, putting it back in the exact bin it came from lets it sell again instead of getting lost in the catalog. Our apparel returns processing timeline follows a return step by step, and bracketing and high return-rate management explains why apparel returns run so high.
It means tracking stock by each size, color and style rather than by design. A design isn't one SKU. Every combination you sell is its own SKU, with its own barcode and its own bin. We store each one separately, scan it when it's picked and again when it's packed, and recount it on a rolling schedule. That keeps the count for every size and color accurate as orders come in from different channels.
Usually many more than it has designs. Each design becomes one SKU for every size and color combination you sell. Twenty designs in 5 sizes and 3 colors already make 300 active SKUs. A full line runs to thousands, and most of them sell slowly and look almost the same as their neighbors. Apparel carries more SKUs than most ecommerce categories, so counting stock by design stops working as soon as someone orders a particular size in a particular color.
Each size, color and style has its own barcoded bin. We scan the garment when it's picked and again at the packing table, so a wrong size or color can be caught before the parcel is sealed. Two polybags of the same style can look identical, so the scanner, not the eye, checks the variant: a medium in black is matched against the order before it can go out as a large in navy.
A cycle count is a recount of stock where it sits, done with a scanner a section at a time throughout the year. It replaces shutting the warehouse for one big count at year end. In apparel, counts drift most among the thousands of slow-selling sizes and colors, and one miscounted size shows up as stock you don't really have. We run cycle counts in Deposco so the stock your store shows matches what's on the shelf.
Yes. Orders from every channel draw on one pool of stock in BestOMS. A unit of a given size and color is counted once, so it can only be sold once, whether the order comes from your own store, a marketplace or a retail account. If you sell wholesale or to retailers, bring their routing guides and labeling rules when you ask for a quote, and we'll confirm how we handle them.