Nike Shirt Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Hanes is the best-performing nike shirt brand in July 2026, moving 10,000 units across 1 ASIN for 55.6% of Top 10 volume. Under Armour follows with 3,500 units (19.4%), ahead of Nike on 2,700 units (15.0%).

With 5 brands splitting the Top 10 and 90.0% 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 $13.99 to $28.12, 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: B0F7TBM1BM booked 400 units at $15.00, with ▼ 20.0% MoM change. On the growth side, B07FKF9F13 leads positive momentum with ▲ 100.0% MoM growth on 400 units, with B0BW1CN9PP close behind at ▲ 100.0% MoM on 200 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.