Features of the Eddie Bauer Motion Men's Trailcool Short Sleeve Tee FreeDry moisture wicking FreeShade UPF 15 sun protection Built-in odor control-stays fresh longer Flat-lock seams for fabric stabilization and to eliminate chafing Mesh on back panel for accelerated wicking and air flow Classic: Universal Fit Not too Slim, not too relaxed on body Fabric Details 93% Polyester, 7% Spandex