The Castelli Men's Cycling Jacket size medium is a high-performance piece of activewear designed for cycling. Made from 100% polyester with a polyester insulation material, features long sleeves and a windstopper style for optimal comfort and protection against the elements. The sleek two tone black/dark grey design full zip with Castelli logos features two zipped air pockets at the front & 3 pockets at the back, the middle one being covered, is stylish & practical, easy to care for and is machine washable. This is great jacket, I have had this from new, only worn it a few times hence it is in very good condition.