Hydro Flask® 21-ounce standard-mouth bottle

Oregon-based brand Hydro Flask celebrates the great outdoors by creating gear that's specially designed for it. This 21-ounce bottle (crafted in powder-coated, professional-grade stainless steel) will get you through a day on the trails. Plus, it's engineered to keep cold water, cold and hot water, hot. . .and big bonus points for being dishwasher safe and sized for most backcountry hydration filters too.