ColdPruf Women's Premium Performance Single Layer Long Sleeve Crew Neck Top 85% Performance Polyester with Silvadur, 15% Spandex Imported Single layer engineering with trim athletic fit and extra length in body and sleeves formoves-with-you-comfort Hemmed cuffs with ColdPruf wordmark on sleeve and elastic thumbhole loop for ease in layering Tagless labeling and flat seems provide a smooth fit and extra comfort Moisture management wicks perspiration and dries quickly Featuring ColdPruf Technical Fiber formulated with Silvadur Intelligent Freshness to minimize odor and odor causing bacteria on fabric Best used as a base layer in cold to very cold weather or as a lightweight sun protection