Girls Bathing Suits Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

PROALLO is the best-performing girls bathing suits brand in July 2026, moving 1,000 units across 1 ASIN for 19.6% of Top 10 volume. Cuddomper follows with 800 units (15.7%), ahead of The Children's Place on 800 units (15.7%).

Volume is spread across 9 brands, with the top three holding 51.0% 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 $13.99 to $20.45, 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: B09FTFYLF9 booked 300 units at $17.00, with ▼ 25.0% MoM change. On the growth side, B0GT4JVW3F leads positive momentum with ▲ 300.0% MoM growth on 200 units, with B0CFCXZY6Y close behind at ▲ 200.0% MoM 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.