Pearl Izumi - Ride Pro Softshell Arm Warmer Barrier: 100% polyester Thermal: 63% polyester 27% Minerale 10% elastane Imported Plush wide elastic binding with silicone gripper for a stay-up fit PRO Softshell fabric provides optimal wind and water -resistance Thermal Fleece provides optimal warmth, dry time and odor absorbance Anatomic left and right arm-specific fit Reflective elements for low-light visibility