Multisport use Fabric: 53% merino wool, 45% polyester, 2% elastane Moisture Wicking Midweight Long Sleeve Slim fit Good pre-owned condition Engineered construction uses knit structures to enhance performance with lighter weights and a cleaner finish Mesh ventilation seamlessly knit in gender-specific zones is designed to keep the body dry and comfortable 3D mapping results in a near-custom fit and freedom of movement while ribbed elbows add durability Merino Sport yarn combines the power of merino with the durability and fast dry times of polyester