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

Hanes is the best-performing white sports bra brand in July 2026, moving 3,000 units across 2 ASINs for 23.1% of Top 10 volume. Comper follows with 2,000 units (15.4%), ahead of COCOMARTS on 2,000 units (15.4%).

Volume is spread across 8 brands, with the top three holding 53.8% between them. No single label controls the shelf, which usually leaves room for a well-differentiated listing to take share without outspending an incumbent. Average selling prices among the leaders run from $14.05 to $15.70, 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, 2 ASINs forced its way in: B0CG12HHLD booked 1K units at $28.00, with ▲ 0.0% MoM change. On the growth side, B0BLB9NLHP leads positive momentum with ▲ 200.0% MoM growth on 300 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.