Size Economics: Which Sizes Yield the Highest Profits?
Sneaker Size Economics: Which Sizes Are Most Profitable for Wholesale
Size might be the single most overlooked profit lever in sneaker wholesale. I've watched buyers obsess over model selection, colorway research, and supplier negotiation — then throw it all away by accepting whatever size run the supplier offers. The difference between a smart size allocation and an indifferent one can be 20–40% on your bottom line. I learned this the hard way early in my wholesale career when I accepted a "full size run" of 200 pairs with equal distribution. I sold through sizes 9.5–10.5 in two weeks at full price. Sizes 7–8 and 12+ took three months and required 15–25% discounts to clear.
This guide is the synthesis of years of size-level sales data across Nike, Jordan, Adidas, New Balance, and other major brands. It covers which sizes command premiums, which sizes you should underweight, and how to build size-run allocation strategies that maximize profit per order.
The Size Demand Curve: Not What You'd Expect
Contrary to popular belief, sneaker demand doesn't follow a normal distribution. It's not a simple bell curve centered on size 9.5. The actual demand curve is bimodal — two distinct peaks — driven by different buyer demographics:
| Size Range (Men's US) | Primary Buyer | Demand Strength | Resale Premium | Sell-Through |
|---|---|---|---|---|
| 4Y – 7Y (GS) | Youth, women buying GS | Moderate | -15% to -5% | Moderate |
| 7 – 8.5 | Small-footed men, women | Strong | -5% to +5% | Fast |
| 9 – 10.5 | Core male sneaker buyer | Strongest | +10% to +25% | Fastest |
| 11 – 12 | Tall/large men | Strong | +5% to +15% | Fast |
| 12.5 – 15 | Very tall/large men, NBA players | Niche Premium | +20% to +50% | Slow |
The key insight: sizes 9–10.5 are the sweet spot for both premium pricing and fast sell-through. Sizes 12.5+ command the highest percentage premiums but sell through much slower — they're a capital-intensive holding play. GS sizes (4Y–7Y) rarely command premiums but turn over quickly during back-to-school season.
Brand-Specific Size Premiums
Different brands have different size demand curves because their customer demographics differ. Here's the breakdown:
Jordan Brand
- Peak sizes: 9.5–11 (20–30% premium for AJ1, AJ4 hot colorways)
- Weak sizes: 7–8, 12.5+ (slow sell-through despite premiums on large sizes)
- GS anomaly: GS Jordans in hyped colorways actually outperform men's in sizes 5.5Y–7Y because women buy GS to fit into limited releases. A GS AJ4 "Bred" in 6Y can resell at the same price as a men's 9.
- Ideal size allocation: 40% sizes 9–10.5, 25% 8–8.5 + 11, 20% 12–13, 10% 7–7.5, 5% 14+
Nike (Non-Jordan)
- Peak sizes: 9–11 (slightly broader than Jordan because Nike's buyer base is more diverse)
- Dunk Low specifically: 7.5–9 (women buying into the unisex Dunk trend create an unusual demand spike in smaller men's sizes)
- Air Force 1: 9–12 (the AF1 customer skews slightly larger than the average sneaker buyer)
Adidas
- Samba/Gazelle: 8–10 (US), 40–44 (EU). The terrace trend is strongest among fashion-conscious buyers who skew slightly smaller than the average sneaker consumer.
- Ultraboost: 9–11. The running-derived customer base skews to practical sizing with more large sizes in the mix.
New Balance
- 990 series: 10–12. The Made in USA NB customer is disproportionately older, male, and larger-footed. Size 11.5 and 12 in 990s sell at significant premiums.
- 2002R/1906R: 8.5–10.5. The younger, fashion-forward NB buyer runs smaller than the traditional NB customer.
The Optimal Size Allocation Formula
After years of refining, here's the allocation formula I use for every wholesale order. Adjusting size distribution to this template has improved my portfolio-wide sell-through rate by 22% and average resale price by 8%:
| Size | % of Order | Rationale |
|---|---|---|
| 9, 9.5, 10 | 35% | Highest demand, fastest sell-through, best premiums |
| 10.5, 11 | 20% | Strong demand, solid premiums |
| 8, 8.5 | 15% | Women's crossover demand, steady sell-through |
| 11.5, 12 | 15% | Good premiums, moderate sell-through |
| 7, 7.5 | 8% | Niche demand, no premium |
| 12.5, 13, 14+ | 7% | High premium but slow turnover — small allocation |
If a supplier offers only "full size runs" with equal quantities per size, negotiate. Explain that you'll take more pairs overall if they can adjust the size distribution. Most suppliers want to move volume — if you're offering to take 500 pairs instead of 300 because the size mix is right, they'll work with you. If they absolutely won't adjust, discount your valuation of the deal by 15–20% to account for the sizes you'll struggle to sell.
Women's Sizing: The Untapped Opportunity
Women's sneaker sizes (5–9 in women's, equivalent to 3.5Y–7.5Y in GS) are systematically under-supplied in wholesale channels because most wholesale supply chains are built around men's sizing. This creates a structural inefficiency you can exploit.
Key dynamics:
- Women's exclusive colorways: These are gold. Nike and Jordan produce women's-only colorways (pastel AJ1s, "Satin" editions) in quantities that are 30–50% smaller than equivalent men's releases. The result: artificial scarcity that drives resale premiums of 25–50% above comparable men's colorways.
- Unisex models in women's sizes: The Samba, Dunk Low, 2002R, and Gel-Kayano 14 all have significant women's demand. But wholesale supply in sizes 5.5–8.5W (3.5Y–7Y) is limited. If you can source these sizes at wholesale, you'll have minimal competition on platforms.
- The "boyfriend sizing" effect: Women buying men's Dunks and Jordans in sizes 7–8.5 create additional demand in what would otherwise be lower-demand men's sizes. This is why sizes 7–8.5 in unisex models sell better than you'd expect based on the male buyer demographic alone.
My recommendation: allocate 15–20% of your wholesale budget specifically to women's sizes and women's exclusive colorways. The competition is lower, the premiums are higher, and the demand is growing faster than men's (the women's sneaker market has grown 8%+ annually vs. 5% for men's over the past five years).
FAQ
Q: What's the single most profitable sneaker size?
Men's size 10.5 in hyped Jordan releases. This size hits the intersection of three favorable dynamics: (1) It's within the core male demographic sweet spot. (2) It's slightly less common in production runs than size 10, creating mild scarcity. (3) It's small enough that some size 11 buyers can squeeze into it (increasing the buyer pool) but large enough that size 10 buyers won't size up to it (avoiding cannibalization). On limited Jordan releases, size 10.5 consistently commands a 15–25% premium over size 10 and 20–35% over size 9.
Q: Should I buy size 14+ sneakers even though they sell slowly?
Yes, but in very small quantities (3–5% of your total order) and only for high-demand models. A size 15 Air Jordan 1 "Chicago" that you bought at $85 wholesale might take 60–90 days to sell, but when it sells at $350+ — a 75%+ premium over standard sizes — the margin justifies the holding period. The key is limiting exposure: never let size 14+ pairs exceed 5% of your total inventory. They're your satellite holdings, not your core.
Q: How do international sizing differences affect wholesale?
Significantly, if you sell cross-border. US size 10 = UK 9 = EU 44 = 28cm JP. If you're selling into the European market, sizes 42–44 EU (US 8.5–10) are the strongest. Asian markets skew smaller: China and Japan demand peaks at US 7.5–9 (40–42.5 EU). Middle Eastern markets skew larger: US 10–12 demand is proportionally higher. When sourcing wholesale inventory for specific regions, adjust your size allocation accordingly. A "full size run" from a US supplier will have different regional sell-through rates than the same run in Europe or Asia.
Q: What about toddler and pre-school (PS/TD) sizes?
TD (Toddler, 2C–10C) and PS (Pre-School, 10.5C–3Y) sizes are a volume game with thin absolute margins. A pair of TD Jordan 1s wholesaling at $12 and reselling at $28 generates $16 gross profit — decent percentage (57%) but low absolute dollars. The advantage is sell-through velocity: parents buy sneakers for growing kids regularly, creating repeat demand. I allocate 5% of my wholesale budget to PS/TD sizes, primarily for hyped Jordan releases where the "mini-me" factor drives parents to buy matching pairs. Outside of Jordan, PS/TD margins are too thin to justify the fulfillment effort.
Q: If a supplier won't adjust size runs, how do I compensate?
Three approaches: (1) Price the deal assuming you'll need to discount the weak sizes (7–8, 12.5+) by 15–25% to move them. Build this into your wholesale offer. If the deal doesn't work at the discounted blended price, walk away. (2) Pre-sell the weak sizes at a discount before you even receive the inventory. List sizes 7–8 and 12.5+ at 10–15% below market as soon as you commit to the order. Accept the margin hit in exchange for capital velocity. (3) Bundle weak sizes with strong sizes in multi-pair lots. Offer "3-pair mixed size bundles" that pair one premium size (9.5) with two weak sizes at an overall attractive price. This clears inventory without individually discounting pair by pair.
