MARS is seamless mens t-shirt.Amazingly lightweight.The Siltex material contains silver ions that make the T-shirt highly antibacterial.The snug fit supports functionality.The undershirt is also comfortable and functional owing to the minimum number of seams.Ideal for summer sports.Comfortable wearing on warm summer days.Material:90% SILTEX, 10% POLYAMIDE. Compare prices from: Lasting in Men's Underwear