Modlily Swimsuits For Women Tankini Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Summer Mae is the best-performing modlily swimsuits for women tankini brand in July 2026, moving 1,800 units across 2 ASINs for 23.7% of Top 10 volume. ROSEWE follows with 1,300 units (17.1%), ahead of Arolina on 900 units (11.8%).

Volume is spread across 8 brands, with the top three holding 52.6% 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 $28.63 to $39.79, 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: B09MW1S4MJ booked 700 units at $23.20, with ▲ 16.7% MoM change. On the growth side, B0G7HMC4L3 leads positive momentum with ▲ 100.0% MoM growth on 200 units, with B084MDPC43 close behind at ▲ 100.0% MoM on 200 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.