Cooloutdoors 2013 New Style Castelli Man's Short Sleeve Bicycle Cycling Jersey Black and White Comfortable Outdoor Jersey Jersey Material: 100% Polyester; Short Material: 90% Polyester, 10% Spandex Three-quarters of invisible zippers design. Full zipper maximizes ventilation. Further reducing the wind resistance COOLMAX: Quick-Dry function and make you feel more comfortable. Lightweight material with moisture wicking technology High-performance moisture permeability sweat in bringing good feelings. Edge line soft, minimize the friction Specification:S M L XL XXL XXXL (Please choose the size according to the size chart)