Caves is made from a Wicking Polyester/Spandex Double Jersey Blend that is comfortable on and off the course. We have added a Contrast Inner Collar to complete its composition, making this style a must have! Wicking Polyester/Spandex Double Jersey. 90% Polyester/10% Spandex. UPF 50+ Sun protection. Contrast Inner Collar & Moon-patch. 1 x 1 Waistband Rib & Cuffs. Exposed Molded Zipper with Contrast Teeth. Machine wash and dry. Embroidered Cambridge C Logo.