89% Polyester and 11% Spandex Materials Contrast Fabric Detail on Sleeve Cuff, Hem, and Inside Collar Omn-Wick Technology to Keep You Cool and Dry Omni-Shade UPF 30 Sun Protection Columbia Golf Omni-Wick Men's 1/4 Zip Even Lie PulloverOmni-Wick Technology to Keep you Cool and DryOmni-Shade UPF 30 Sun ProtectionContrast Fabric Detail on Sleeve Cuff, Hem, and Inside CollarMade with 89% Polyester and 11% Spandex for ease of movement