Sport-Tek Tricot Track Jacket. JST90 100% Polyester Zipper closure With an active team, you need track gear that can keep up. Made from comfortable tricot, the relaxed styling of our coordinating jackets and pants allow ample room for easy movement, while the athletic-inspired styling ensures your logo stands out. 100% polyester tricot Soft-brushed backing Flatlock stitching throughout Cadet collar