Description Of Helly Hansen Granite Jacket Tough as rocks, the Granite Jacket provides exceptional waterproof breathable protection with its Helly Tech® XP exterior and fully taped seams. Stay extra warm at the top of the mountain with Thinsulate® insulation and mesh interior with reflective silver backing for heat retention. Asymmetric cuffs, molded cuff tabs, and a hanging hood add style and function. Features: Helly Tech® XP with Thinsulate® insulation Water resistant zips Pit zip mechanical venting Full time hood with one-hand adjustment Stretch, snap-away, zip-off powder skirt Multiple pockets and goggle wipe Mesh interior with reflective silver backing for heat retention Assymetric cuffs and molded cuff tabs Snap-up hem drawcord adjustment