Sizing Runs That Sell Faster for Boutiques

A sizing run can make or break your sell-through rate. Order too many smalls and you're sitting on dead inventory by mid-season. Load up on larges without enough mediums and your best-selling size is out of stock before the rush even peaks. The difference between a tee that flies off the rack and one that ends up on a clearance table often has nothing to do with the design — it's the sizing allocation behind it.

Getting your sizing curve dialed in is one of the most practical skills a boutique buyer can sharpen, and it doesn't require fancy software or years of data. It just takes a closer look at who's actually buying from you.

The Standard Curve Doesn't Fit Every Store

Most wholesale suppliers offer a pre-packed sizing run — something like a 1-2-2-1 across S-M-L-XL, or a 1-2-3-2-1 if you're running S through 2XL. These standard curves are built around national averages, and they work fine as a starting point. But your store isn't a national average.

If your customer base skews younger — say college-town shoppers grabbing concert tees — you might move more smalls and mediums than anything else. If your boutique serves a broader age range or caters to a curvier western audience, your sweet spot could be medium through XL, with 2XL and 3XL moving faster than small ever does.

Stocking a pre-set curve without adjusting for your actual customer saves time on the ordering side, but it costs you on the selling side. Those leftover sizes eat into your margins and take up rack space that could hold something that moves.

Pull Your Own Sales Data Before Placing Spring Orders

Before you lock in your Spring 2026 buys, run a quick report on what sizes you've actually sold over the past two seasons. Most POS systems can break this down by category or even by individual SKU. You're looking for your store's natural bell curve — the sizes that consistently sell first, the ones that linger, and any gaps where you ran out too early.

A few things to watch for:

• Which size sells out first on graphic tees specifically (not just across all tops — tee buyers and blouse buyers often have different size profiles)
• Which sizes end up marked down most often — this tells you where your curve is too heavy
• Whether extended sizes (2XL, 3XL) are being requested but not stocked — lost sales don't show up in your POS, but your staff probably remembers customers asking

Even a rough tally from the last rodeo season gives you more to work with than guessing.

Building a Custom Curve Without Overcomplicating It

You don't need to reinvent your entire ordering process. Start with the pre-packed run your supplier offers and adjust from there. If you're ordering multiple packs of the same design, shift one pack's allocation toward your high-demand sizes.

For example, say you're ordering 24 units of a western graphic tee. A standard 1-2-2-1 across S/M/L/XL gives you a pretty even spread. But if your data shows medium and large account for 60% of your tee sales, and small consistently gets marked down, a smarter allocation might look like:

• S: 2
• M: 8
• L: 8
• XL: 4
• 2XL: 2

That's the same 24 units, but weighted toward where your money actually moves. Many wholesale suppliers — Arrow F Apparel included — can work with you on custom sizing allocations when you're ordering in volume. It's worth asking.

Extended Sizes Are a Margin Opportunity, Not a Risk

A lot of boutiques skip extended sizes because they're worried about getting stuck with inventory. But the demand for 2XL and 3XL western tees is real and growing. Boutiques that stock inclusive size ranges often find those customers become their most loyal repeat buyers, specifically because options are harder to find elsewhere.

If you've never carried extended sizes, test the waters with a small allocation on your best-selling designs. A rodeo-themed tee or a bold western graphic that's already proven in your core sizes is a low-risk way to see how your customers respond. You're not gambling on a new design — you're expanding access to something you already know works.

Reorder Timing Changes When Your Curve Is Right

One underrated benefit of nailing your sizing run: your reorder cycle gets more predictable. When you're not waiting around for stragglers in unpopular sizes to clear out before you can justify a restock, you can reorder sooner and keep your best sellers in stock longer.

For Spring 2026, this matters more than usual. Rodeo season and country concert lineups drive demand in tight windows. Running out of your top sizes in week two of a four-week selling window means leaving real revenue on the table. A tighter sizing curve means your inventory turns faster, your cash flow stays healthier, and you're restocking winners instead of marking down leftovers.

The smartest buying decision you make this season might not be which design to pick. It might be how many mediums to order.