In wholesale, footwear sells by the carton, not the pair. Inside each box is a fixed set of sizes. Understanding that set directly affects your profit.
What a Size Run Is
A size run is the distribution of sizes inside a carton. For women's sneakers, for example, a typical run might span 36 to 41 with more of the middle sizes, because those sell fastest.
Pairs per Carton
The pair count per carton depends on the model: light summer footwear is often packed tighter than winter boots. Always confirm the pair count and weight before ordering.
Why It Affects Profit
If a carton holds too many extreme sizes, some pairs will sit on the shelf. A balanced run sells through almost completely — and that's what delivers real profit, not just gross turnover.
Practical Tips
- Learn which sizes sell most at your specific location.
- Choose cartons with a run skewed toward your fast-moving sizes.
- Don't chase a cheap carton with a lopsided run.
- Record which sizes linger and adjust your next order.