The original PlatypusA(R) water reservoir that became a backcountry classic, the Hoser(TM) 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(TM) 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. Specs 1 liter 1.8 liter 2 liter 3 liter Capacity (Standard) 34 fl. oz 60 fl. oz 70 fl. oz 100 fl. oz Capacity (Metric) 1.0 liters 1.8 liters 2.0 liters 3.0 liters Weight (Standard) 3.2 oz 3.4 oz 3.6 oz 3.8 oz Weight (Metric) 0.09 kg 0.10 kg 0.10 kg 0.11 kg Width (Standard) 5.2 in 6.7 in 6.0 in 7.0 in Width (Metric) 13.5 cm 17.0 cm 15.0 cm 18.0 cm Length (Standard) 11.5 in 11.5 in 16 in 16.5 in Length (Metric) 29 cm 29 cm 40.5 cm 42 cm Film Polyurethane / Polyethylene Polyurethane / Polyethylene Polyurethane / Polyethylene Polyurethane / Polyethylene Spout material Polyethylene Polyethylene Polyethylene Polyethylene Bite valve material Silicone Silicone Silicone Silicone Country of Origin Made in the U.S.A. of U.S. and Imported Materials Made in the U.S.A. of U.S. and Imported Materials Made in the U.S.A. of U.S. and Imported Materials Made in the U.S.A. of U.S. and Imported Materials