Mens Workout Shirts Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Gildan is the best-performing mens workout shirts brand in July 2026, moving 10,000 units across 2 ASINs for 25.6% of Top 10 volume. MCPORO follows with 6,000 units (15.4%), ahead of AKAWOOKO on 4,000 units (10.3%).

Volume is spread across 9 brands, with the top three holding 51.3% between them. No single label controls the shelf, which usually leaves room for a well-differentiated listing to take share without outspending an incumbent. Average selling prices among the leaders run from $19.99 to $20.99, 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: B0CNVR71R9 booked 3K units at $19.88, with ▲ 50.0% MoM change. On the growth side, B0CSWHJ9BS leads positive momentum with ▲ 150.0% MoM growth on 2K units, with B0F1KJY651 close behind at ▲ 125.0% MoM 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.