Womens Plus Size Swimsuit Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Blooming Jelly is the best-performing womens plus size swimsuit brand in July 2026, moving 2,600 units across 3 ASINs for 32.1% of Top 10 volume. Daci follows with 1,000 units (12.3%), ahead of ROSEWE on 900 units (11.1%).

Volume is spread across 8 brands, with the top three holding 55.6% 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 $34.92 to $43.99, 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, one ASIN forced its way in: B0DLT3GTXD booked 800 units at $35.99, with ▲ 60.0% MoM change. On the growth side, B0F18SHD3Y leads positive momentum with ▲ 100.0% MoM growth on 200 units, with B0FSKK6VG7 close behind at ▲ 50.0% 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.