Plush comfort without extra bulk, the Core 9" Tri Short boasts an Integra SBR 2D chamois. Enjoy 8mm of ultra-density padding in the front and 3mm in the rear for maximum comfort and minimal bulk. The Italian Performance Endura fabric helps you stay dry and cool. The exclusive BIOwrap gripper-free hem keeps these tri shorts from riding up so you stay comfortable as you run, bike or swim. Please refer to the size chart to assure a proper fit. These tri shorts are designed to be a relaxed fit. Fabric: Body: 78% Polyamide / 22% Elastane Mesh:80% Polyamide / 20% Elastane, 180gm2Ê