ColdPruf Men's Quest Performance Long Sleeve Base Layer Shirt - Built strong enough to withstand the harsh wilderness and comfortable for the journey out there. So Versatile! Wear as a base layer or as a casual mid or outer layer. Single Layer Engineering ColdPruf Technical Fiber Polyester with SILVADUR Intelligent Freshness Controls odor and inhibits bacterial growth on fabric Wicks and aids in moisture evaporation Brushed inside for warmth and comfort 85% Polyester/15% Spandex Fabric Weight: 184g Extended body and sleeves for ultimate athletic fit Raglan Sleeve Drop tail Tagless, Flat Seams offer added comfort Style: 82A