Pearl Izumi - Ride Elite Thermal Arm Warmer 6% nylon, 30% polyester, 14% elastane Imported Plush Wide elastic binding with silicone gripper for a stay-up fit Autumn/Winter 2015 P.R.O. Barrier WxB powered by Outdry provides optimal water protection by bonding the waterproof, breathable membrane; Light fleece lined interior Anatomic left and right arm-specific fit Reflective elements for low-light visibility