Merrell Men's Crestbound Stealth Jacket Shell: 100% polyester M-Select XDry waterproof; Insulation: Thinsulate Platinum 100g Proprietary M-Select XDry fabric blocks wind and precipitation while also allowing air permeability from the interior. Fully seam-sealed, Waterproof taped zippers Chest pockets with hidden snap closure, Interior zip-secure chest pocket Adjustable insulated hood with collar, Velcro adjustable cuffs 12 pit zippers to dump heat