Coldpruf Premium Perform Men Crew Hg Xl. Trim fit for higher activity levels. Wicks and aids in moisture evaporation. Controls odor and inhibits bacterial growth on fabric. Extra length in body & sleeves for ultimate athletic fit. For cold/very cold weather medium/high activity level. 85percent CPT performance polyester 15percent spandex. Weight: 4.9 oz. Specifications for Coldpruf Premium Perform Crew Men's: Manufacturer: Coldpruf Age Group: Adults Apparel Fit: Athletic Gender: Male Color: Heather Gray Features of: 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 Trim Athletic Fit with Extra Length in Body and Sleeves for Moves-With-You-Comfort Lightweight 85percent Performance Polyester 15percent Spandex Fabric Weight: 4.9 oz. Hemmed Cuffs Tagless and Flat Seams for added comfort