2XU Men's Compression Trisuit 83% Polyester/17% Elastane Lycra Imported Front Semi-Lock Zipper ICE X fabric technology with Xylitol and IR blocking for exceptional cooling 2XU's Proprietary 105D/CK compression fabric for the ultimate in muscle stabilization and increased endurance Elite LD Fusion welded, perforated chamois for ventilation and impressive quick drying capability for the ultimate in comfort and performance Ample Rear Pocket for race day essentials