Knack Series 1 Medium Expandable Backpack, Stealth Black Color:Stealth Black Chair max capacity 200lbs 26 kgs Laptop sleeve Chair max capacity 200lbs 100% polyester shell 100% nylon zip in inner jacket with 3 ounce polyfill 3000MM fabric waterproof rating 1000G M2 fabric breathability rating Detachable hood with locking drawcord Full length interior storm flap Chin guard Contrast zippered chest and sleeve pockets Front zippered pockets Adjustable tab cuffs with hook and loop closures Port Pocket for easy embroidery access Shell has an open hem Inner jacket has front slash pockets and open hem comfort cool foam back panel Meets most popular carry on requirements as well as fits under most seats