LIFETIME WARRANTY100% waterproof, all seams are electronically heat weldedMade from durable UV Coated 24oz Tarpaulin PVCWater tight roll closure with quick release bucklesBag can seal in 2 different closure methods, over the top or down the sidesExtra-large buckle ensures roll stays closed in all environmentsOne-way waterproof purge valve makes for compression easyReflective webbing and external bungee storage systemInner sleeve to hold most folders, notebooks, tablets and up to 15†laptopsIncluded quick release buckles convert bags into the perfect waterproof tail packsRemovable MOLLE panel is reversible with waterproof document/map pocketIntegrated front pocket to hold optional hydration bladder (CL-HYDRO-S not included)2 Side mesh pockets large enough to hold 30 Oz. fuel bottles (Bottles not included)Backpack straps are 3-way adjustable and padded for comfortPadded back panel with airflow systemDimensions: 20L 12.75â€L x 4.75â€W x 23.75â€H / 40L 12.75â€L x 6â€W x 31.5â€H