Honest Diapers Size 2 Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

HUGGIES is the best-performing honest diapers size 2 brand in July 2026, moving 59,000 units across 2 ASINs for 31.7% of Top 10 volume. The Honest Company follows with 47,000 units (25.3%), ahead of Amazon Elements on 40,000 units (21.5%).

With 6 brands splitting the Top 10 and 78.5% 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 $20.47 to $31.66, 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: B0CKV2ZL1Y booked 7K units at $23.58, with ▲ 40.0% MoM change. On the growth side, B0FXYGBMGH leads positive momentum with ▲ 100.0% MoM growth on 2K units, with B0GC95XM1H close behind at ▲ 66.7% MoM on 5K 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.