Features of the Icebreaker Men's Amplify Tank Cool-Lite fabric for faster wicking and comfort in warm to hot conditions Corespun fabric for enhanced durability Offset shoulder seams for comfort Drop tail hem for added coverage Eyelet mesh back for full ventilation Icebreaker reflective heat transfer logo Fabric Details 52% Merino, 35% Tencel, 13% Nylon Mesh: 51% Merino, 35% Tencel, 14% Nylon