With its generous RBX chamois specifically engineered for long days in the saddle the RBX short is a comfortable & reliable endurance ride partner. Made from Deflect UV fabrics to protect you from the harmful effects of UV rays while youre out there putting in the miles. Vapor Rize moisture transfer fabrics with coldblack® technology from Switzerland RBX silicone grip elastic Body Geometry RBX Pro Chamois Deflect UV 50+11-1/2" inseam-size medium