OGIO Erzberg Hydration Pack features:

1-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 accessoriesQuick cooling air mesh back panelAdjustable harness system for maximum mobilityDesigned to fit all body types and for a secure fit to your body to reduce bouncingA dual triangulated E-band waist strap is designed to enhance comfortBladder 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 cleaning1-litre capacity including bladderWeighs 408 grams without the bladderPack is made using 150D Mini honeycomb rip stop and 420HD Oxford nylonDimensions: 11" H x 9.5" W x 1" DMade in the USA