The Canari TT Contoured Arm Warmers provide arm protection and keep you dry and comfortable. The Arctic fabric is a thermo regulating fabric that provides increased moisture management and temperature control. Flatlock seaming provides a chafe-free experience. Canari signature silicone gripper elastic at the bicep area keep the sleeves from slipping down. Articulated paneling provides a superior fit and are right and left specific. Material: Arctic Thermo Regulating fabric. Sizing: Men - Use your normal jersey sizing, Women - use a size below your normal jersey sizing.