Hydrapak Stow™ 500ml Color:Mammoth Grey opened up the fit to

opened up the fit to be a little roomier and increased the leg opening to 18"

Enhances breathability

it shrinks as you drink to minimize water movement and it can be used with or without the tube

ski mounting and repair

Hydrapak Stow™ 500ml Color:Mammoth Grey opened up the fit toFill. Drink. Pack. Repeat. With durable construction and minimal design for easy packing, the flexible Stow 500ml helps make all your adventures the best they can be. An easy open flip cap cover protects the spill proof nozzle when not in use, bail handle for comfortable carrying and attachment, and a weight 80% lighter than most hard bottles, and youve got a perfectly pocketable bottle.