Men's seamless underwear (top) made in the 4FSkin technology, made to tightly wrap your body and ensure excellent warmth and freedom of movement during most intense activities. Perfect pick for the first layer.ADVANTAGES: slim fit, ideal as a base layer, quick-drying finish keeps moisture away from the body, anti-pilling finish for improved durability, seamless construction keeps you comfortable and chafe-free, stretchy, technical fabric in the 4FSkin technology follows your body shape, ensuring comfort and maximum freedom of movement.