"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Enter: The Stanley Quencher H2.0 FlowState™ Tumbler (40 oz) and the Hydro Flask 40 oz Travel Tumbler.

Joe Jackson, Outside online's Gear Guy, never thought that the ten years he spent as a raft guide, outdoor retail employee, and vagabond would turn into a career. It’s no secret that I love Hydro ...

Graham Averill is Outside magazine’s national parks columnist, but some of his favorite adventures have happened inside state parks. I still remember when I bought my first hydration pack. It was ...

When the $20 Micro Hydro was introduced to the world a month ago, all four colors sold out in four days. Now, the bottle is back with some exciting news on the horizon. As of Wednesday, March 19, the ...

Marquee image: The tried and true test of the Hydroflask coffee thermos, water bottle, and pint glass used on the regular, every day. PHOTO: David Reddick The first time I discovered the magic of the ...

From now until January 28th, REI is offering many Hydro Flask’s products off 30 percent. This includes tumblers, coffee flasks, food flasks, mugs, coolers, and more. We love hydrating—and ...