Kensington Fleece Jacket is a fleece that is 4 times more wind resistant compared to a regular fleece. The tight knitted Polartec Wind Pro fabric is warm, wind resistant and water resistant and we believe once you have tried it on you simply wont take it off! Shell: 100% Polyester Polartec, YKK Zipper, Flatlock seams for extra comfort, No shoulder seams, YKK front zipper with chin protector, Chest pocket with YKK zipper, No side seams for extra comfort, Hand pockets with brushed lining, Hand pockets with YKK zipper, Inside stash pockets, Articulated sleeves for optimal mobility, High collar for comfort and protection, Double layer fabric in collar, Extended back for improved comfort, bluesign product.