A six-panel sports cap cut from lightweight Alpinix™ 37,5 Wool in a shallow fit. 37.5® utilizes natural mineral technology maintaining an ideal core temperature and removing sweat at vapor stage. The technology is embedded into the recycled polyester fiber and will never wash out. Alpinix™ fabric integrates high performance and low maintenance for versatile wear. The fabric features a dry touch and durable texture due to its blend of compact woven wool, 37.5® polyester polyamide and polyurethane, balancing functionality, durability and elasticity.