Toddler Girl Underwear Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Fruit of the Loom is the best-performing toddler girl underwear brand in July 2026, moving 11,000 units across 2 ASINs for 36.7% of Top 10 volume. ZERULETS follows with 4,000 units (13.3%), ahead of Hanes on 4,000 units (13.3%).

With 7 brands splitting the Top 10 and 63.3% 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 $10.61 to $11.99, 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: B0DW9C3F4L booked 2K units at $14.24, with ▲ 100.0% MoM change. On the growth side, B084DT3TZL leads positive momentum with ▲ 125.0% MoM growth on 900 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.