SILVER LINE performance base layer combines the naturally occurring properties of BAMBOO together with Elite Hockey??s own exclusive PRO VENT technology to produce a great fitting performance garment. True body fit construction Made of Bamboo, Elite undergarments are hypoallergenic, antibacterial, antifungal and antiodor. Flatlock seam construction reduced chafing and irritation Thermo-Regulating Moisture wicking Thick elastic waistband with draw cord Velcro tabs to hold up socks The ultra lightweight Pro-Fit Cup is covered by a soft shell and features cooling vents and flex sidex for comfort Content: 100% Polyester (95% Rayon made from Bamboo, 5% Performance Spandex Elite Junior Loose Fit Mesh Jock Short with Pro-Fit Cup, X-Large, Black/Cyan MS1278507 MS1278507 812492075639