● On-the-fly compression lets you adjust load stability while wearing the pack

● HardWave framesheet keeps the back panel flat for a stable fit without reducing flexibility

● Breathable mesh back panel with air channels offers great breathability to help keep you cool and dry

● Soft-edged shoulder straps with ventilated foam are comfortable against bare skin

● Stretch compression pocket on the front accommodates a helmet or extra clothing

● Zipper-free sleeve holds a reservoir up to 3 liters in size (reservoir not included) and makes it easy to refill for convenient hydration on the go

● Zippered pocket on top is easily accessible for snacks and other small items

● Internal pocket is fleece-lined for sunglasses, electronic devices or other small, fragile items; front panel organizer pocket holds keys, wallet and other valuables

● Zippered mesh pockets on hipbelt keep energy bars or other essentials handy; stretch-woven side pockets hold water bottles, gloves and hats

● The Mountain Hardwear Fluid 18 pack is made of 100- and 315-denier Cordura® nylon and ripstop nylon panels

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