Big Zip™ EVO Out of Stock Hydro Flask's unique double wall

Hydro Flask's unique double wall vacuum insulation protects temperature for hours

Weight Grams: 824g

So named for the black fingernails and teal eyes of the late-and-great-tortured-artist and social-absinthe-alcoholic who most don't realize was also an ultra-long-distance sprinter

Patented Diamond Beads are made from case-hardened steel alloy strung on steel aircraft cable

and style for athletes and their kids

Big Zip™ EVO Out of Stock Hydro Flask's unique double wallIntroducing the Big Zip EVOthe latest evolution in taste free hydration. The Big Zip EVO delivers a significantly higher flow rate than previous Platypus reservoirs and a host of new features, making it a great option for backpackers, hikers, and mountain bikers. Available in 1. 5L, 2. 0L, 3. 0L and a Lumbar 2. 0L. Secure SlideLock: Slides both directions to easily open, securely close and fill reservoir. Handy Pincher Grip: Allows for easy one handed