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

ANRABESS is the best-performing plus size shirts brand in July 2026, moving 9,000 units across 3 ASINs for 33.3% of Top 10 volume. Trendy Queen follows with 7,000 units (25.9%), ahead of OFEEFAN on 3,000 units (11.1%).

With 7 brands splitting the Top 10 and 70.4% 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 $8.99 to $12.99, 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: B0FQJMF8P7 booked 2K units at $8.89, with ▲ 0.0% MoM change. On the growth side, B01DSQNX92 leads positive momentum with ▲ 400.0% MoM growth on 500 units, with B0D3F42HX2 close behind at ▲ 100.0% MoM on 400 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.