Fit & Design: Trim athletic fit with extra length in body and sleeves to give you comfort while you move Crewneck for easy on and off slip Hemmed cuffs to hold you in as you move Lightweight, with single layer engineering for a comfortable feel Technology: Coldpruf(R) Technical Fiber Polyester with SILVADUR(TM) Intelligent Freshness controls odor and inhibits bacterial growth on fabric Material wicks and aids in moisture evaporation