Maternity Underwear For Women Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Frida Mom is the best-performing maternity underwear for women brand in July 2026, moving 15,000 units across 3 ASINs for 39.5% of Top 10 volume. HBselect follows with 5,000 units (13.2%), ahead of Vevmon on 5,000 units (13.2%).

With 8 brands splitting the Top 10 and 65.8% 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 $11.89 to $24.99, 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: B07KTQ1Q3X booked 2K units at $19.99, with ▲ 100.0% MoM change. On the growth side, B0C6TM1784 leads positive momentum with ▲ 66.7% MoM growth on 500 units, with B0CZ74TMX5 close behind at ▲ 50.0% MoM on 3K 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.