The original Platypus® water reservoir that became a backcountry classic, the Hoser™ is an ultralight, minimalist hydration system that delivers taste-free hydration with a versatile, durable design that makes it great for backpacking, thru-hiking, and day hikes. Updates include a new self-sealing HyFLO™ bite valve that delivers a 30% increase in flow rate, making it quicker and easier to hydrate on the go.

Drink on the go: New simple, one-piece, self-sealing HyFLO bite valve makes it quicker and easier than ever to hydrate hands-free with a 30% increased flow rate.
Easily transportable: Integrated hang/carry loop makes it easy to secure the reservoir in a backpack or elsewhere.
Pure Platy experience: All materials are certified taste-free, BPA-free, BPS-free, and phthalate-free.
Funk-free: Embedded silver-ion protects reservoir from mold and bacteria.
Versatile: Threaded port and 1/4" diameter drink tube make it easily compatible with accessory caps and adaptors.