Women Sports Bra Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

OEAK is the best-performing women sports bra brand in July 2026, moving 10,000 units across 2 ASINs for 29.4% of Top 10 volume. LetsJoli follows with 7,000 units (20.6%), ahead of CRZ YOGA on 6,000 units (17.6%).

With 7 brands splitting the Top 10 and 67.6% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $18.98 to $28.00, which frames the price band a competing listing has to justify.

Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B00U5TADVW booked 1K units at $17.49, with ▲ 0.0% MoM change. On the growth side, B0BMPFH9PH leads positive momentum with ▲ 100.0% MoM growth on 1K units, with B0BMPK3HXN close behind at ▲ 66.7% MoM on 1K units.

The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.