Potty Training Underwear For Boys Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Pampers is the best-performing potty training underwear for boys brand in July 2026, moving 33,000 units across 4 ASINs for 42.3% of Top 10 volume. GoodNites follows with 20,000 units (25.6%), ahead of Pull-Ups on 19,000 units (24.4%).

With 4 brands splitting the Top 10 and 92.3% 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 $29.99 to $49.27, 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: B078WB74R9 booked 5K units at $49.27, with ▲ 0.0% MoM change. On the growth side, B0GTLXLQDB leads positive momentum with ▲ 400.0% MoM growth on 1K units, with B0CNS68VPX close behind at ▲ 150.0% MoM on 1K 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.