Hydro Flask began with a challenge: to create a reusable water bottle that truly performs in any environment. It had to keep hot liquids hot (12 hours!) and cold liquids cold (24 hours!). Period! It should be BPA-free, lightweight, durable, sweat-proof, freeze-proof, recyclable, and come with an unconditional lifetime warranty. We tested and thoroughly Approved! Made from 18/8 stainless steel and features double-wall vacuum insulation. Beer stays cold when it’s hot outside - coffee stays hot when it’s cold outside!
Every bottle has a serial number engraved on the bottom of the bottle. Simply go to FivePercentBack.org, input the serial number engraved on the bottom of your Hydro Flask bottle and select a charity that resonates with you. The volunteer-based organization donates 5% of the proceeds to a charity or non-profit of your choosing.