21OZ Hydro Flask
This insulated stainless steel bottle with a sport cap is BPA- and phthalate-free, and keeps drinks hot for six hours or cold for 24. It stashes easily in a small shoulder bag, the side pocket of a backpack or a car cup holder, and holds enough to keep you going for hours without weighing you down. And because outdoor adventure is hard on gear, Hydro Flask offers a lifetime warranty.
Learn More: www.hydroflask.com