Arc'teryx Anzo T-Shirt Men's DryTech - 60% cotton, 35% polyester, 5% elastane ANZO T-SHIRT - Made from DryTech, a lightweight cotton blend that pulls moisture off of the body, the Anzo delivers comfort in warm weather and during active commutes. Gusseted underarms add mobility and comfort. LIFESTYLE - Technical outdoor functionality, comfort and durability brought to everyday designs. NATURAL FIBRE - Textiles made from natural fibres provide inherent benefits and next-to-skin comfort.