Hydro Flask has released its latest collection of National Park water bottles, featuring designs inspired by Zion, Yosemite, and Yellowstone national parks. These 32-ounce Wide Mouth Water Bottles are double-wall vacuum insulated, keeping beverages cold for 24 hours and hot for 12 hours. They are also leakproof and dishwasher safe, and come with Hydro Flask’s limited lifetime warranty. Each bottle contributes to efforts aimed at preserving the national parks they represent.