ARIAT75% Polyester 25% EelastaneZipper closureSupports your riding with High-stretch fabric features ClimateTEK cooling technology,FreshTEK odor resistanceUPF 50 to shield skin from the sunA grip strip at the hem keeps the shirt in place as you moveQuarter-zip placket and modified stand collar10039197Ariat Ladies' Ascent Quarter-Zip Long Sleeve Base Layer, Medium, Black -. The Ariat Ladies' Ascent Quarter-Zip Long Sleeve Base Layer supports your riding with "posture prompting" construction and compressive, breathable mesh paneling. High-stretch fabric features ClimateTEK cooling technology, FreshTEK odor resistance and provides UPF 50 to shield skin from the sun. A grip strip at the hem keeps the shirt in place as you move.