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

OEAK is the best-performing racerback sports bra brand in July 2026, moving 6,000 units across 1 ASIN for 27.3% of Top 10 volume. Tmeefee follows with 4,000 units (18.2%), ahead of CRZ YOGA on 3,000 units (13.6%).

Volume is spread across 8 brands, with the top three holding 59.1% 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 $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, 2 ASINs forced its way in: B0BMPK3HXN booked 1K units at $25.99, with ▲ 66.7% MoM change. On the growth side, B0BMPRVC6Y leads positive momentum with ▲ 125.0% MoM growth on 900 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.