Features of the Pearl Izumi Men's Pro Mesh Jersey PRO Transfer In-R-Cool mesh main body for maximum breathability and quick drying PRO Aero fabric in key leading-edge Areas reduces aerodynamic drag Patented anatomic Speed Sleeve construction optimizes Fit in the cycling position Longer to-the-elbow sleeves reduce drag around Upper arms Compressive feel for on-the-bike Performance Clean raw-edge mesh arm openings for seamless transition to skin Low neckline for hot weather comfort Full-length semi-auto lock zipper can be flipped up and pulled open with one hand for easy venting Three back pockets PEARL iZUMi Fit Experts recommend sizing up on this jersey for the best Fit Fabric Details Main Body: 88% Polyester, 12% Elastane Sleeves and Side Panels: 71% Polyester, 29% Elastane Back Pockets: 83% Polyester, 17% Elastane