OGIO Atlas Hydration Pack features:

3-litre bladderAnti-slosh bladder compartment with hook & loop strap to hold bladder in placeInsulated Cooler Fabric lining to keep your liquid cold for 30% longerBreathable front compartment for storing extra gear and accessoriesPadded back panel with directional air flowAdjustable harness system for maximum mobilityDesigned to fit all body typesBladder is made of Custom mPE/EVA film, is naturally anti-microbial, BPA free, and is taste and odour-freeBladder features a top fill closure and anti-slosh stabilizing handle for easy filling and cleaning5-litre capacity including bladderWeighs 612 grams without the bladderPack is made using 150D Mini honeycomb rip stop and 420HD Oxford nylonDimensions: 17.25" H x 9.5" W x 3.5" DMade in the USA