Dry Hike 40+5 is the ideal backpack for trekking and hiking. 100% waterproof thanks to HDryA(R) technology (10,000 mm water column, even around the seams). a Fabrics: 100% recycled 210D polyester Invisible Ripstop.a Back: "Hollow Back System" back: ultra-breathable back, shoulder straps and waist belt with a combination of pre-formed padding with vent channels and super-breathable mesh fabric.a Pockets: On top lid | Side bellows pockets | On waist banda Accessories: YKK waterproof zippers | Removable hood with heat-sealed seams and waterproof zipper. | "Roll-up" top lid with zipper | Front access to the main body of the backpack with waterproof zipper. | Side compression tapes | Two pole / ice axe holders | Additional removable storage straps (front and bottom) | Chest strap with emergency whistle. | Compatible with "Helmet Holder". | Front daisy chain for gear. TECH DATAWEIGHT MIN (Kg/g: 940 gWEIGHT MAX (Kg/g): 1,12 kgCAPACITY (l): 40 + 5 lDIMENSIONS (cm): 60x24x28 cm ACTIVITIES: TREKKING - HIKING