Features of the Thule Stir Alpine Backpack Designed to support any adventure with a Highly weather and abrasion resistant coated nylon fabric Removable lid, frame sheet, hip belt padding and sternum strap allow pack weight to be reduced up to 500g /1.10 lb for light and fast missions Storm flap provides weather protection when lid is removed Securely attach skis using an A frame or diagonal carry Quickly access a snack in the shoulder strap stretch pocket Fast-access side zipper allows you to find contents toward the middle and bottom of the pack Secure two ice axes with a dedicated tool garage Attach a Climbing rope or jacket with the underlid compression strap Hydration compatible design Features reservoir sleeve with drink tube exit port(Reservoir sold separately) Easily store small Items in the interior zipped mesh pocket