Men's long-sleeve Under Armour HeatGear compression shirt in lightweight HeatGear material that wicks sweat away and dries quickly. Compression clothing increases the pressure in your muscles and speeds up the blood supply to the muscles which has a positive effect on your athletic performance. Suitable for all kinds of sports. The extra lightweight HeatGear material provides perfect coverage without any restrictions. Mesh panels on the back and underarms for strategic ventilation. The material wicks sweat away and dries very quickly. You'll stay fresh even after a big sports performance. Ergonomic fit with seams outside the most stressed areas for greater durability and chafe-free wear. Hybrid raglan sleeves for maximum freedom of movement and comfort. Inner label for writing your name or number.