A Hydro Flask bottle—of any kind—is reliable. This insulated, double-walled stainless steel water bottle has a powder-coated exterior (a permanent, lightly textured coating) and a plastic cap.

Learn more It's easy to think the products you see posted everywhere are overrated — but we're here to tell you Hydro Flask lives up to the hype. Vacuum-insulted, cold-retaining water bottles ...