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

Blooming Jelly is the best-performing plus size bathing suits brand in July 2026, moving 3,500 units across 3 ASINs for 32.7% of Top 10 volume. Holipick follows with 2,700 units (25.2%), ahead of Lilosy on 1,000 units (9.3%).

With 7 brands splitting the Top 10 and 67.3% 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 $19.99 to $37.99, 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: B0DLT1RTVQ booked 800 units at $32.99, with ▲ 33.3% MoM change. On the growth side, B0GGXXXY8P 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.