Features of the Icebreaker Men's Anatomica Seamless Boxer New seamless construction for mobility and to prevent chafing Cool-Lite fabric for comfort in warm to hot conditions Lycra content for stretch and mobility Nylon content for durability Contoured pouch Flatlock seams prevent chafing Gusset for comfort and mobility Icebreaker knitted logo Fabric Details 40% Merino, 40% Tencel, 14% Nylon, 6% Lycra