The men's T-shirt made of ultra-breathable material is very light and, in combination with 4-Way Stretch technology, provides a comfortable feeling while wearing. Ultra-breathable knit is very light and comfortable The material wicks away sweat and dries very quickly 4-Way Stretch technology allows for better movement in every direction Underarm material provides better mobility, ventilation and blister-free performance Lowered, contoured hem for better coverage.