Arm warmers are an essential layering piece & the Thermal Arm Warmers are no exception. Throw em in your pocket for a post-work spin or start with them on for a ride with inclement weather—these warmers are warmer than our Seamless Warmers ensuring you have plenty of insulation from Old Man Winters sting. Light-tack grippers keep the warmers in place. Fabric Content: 84% Polyamide 16% Elastane