Revolutionary double walled thermal bottle crafted with a rugged, durable construction ready for any outdoor expedition. The 621ml Standard Hydro Flask has been designed with an abundance of features that really separates it from anything similar on the market. It is constructed using an extremely hard-wearing 18/8 pro-grade stainless steel that provides exceptional durability and ensures that there is no bad taste from the bottle itself. Every material used in the manufacturing process is also BPA-free, so you can rest assured, whatever you may be carrying it will taste as pure as possible. The Hydro Flask also features the incredible TempShieldTM insulation, that both eliminates condensation and keeps beverages cold up to 24 hours and hot up to 12 hours. It has been expertly designed, allowing it to fit perfectly into backpacks and gym bags and making it easy to carry on the go thanks to the small carry handle. The 621ml flask has been finished with a proprietary powder coating that provides better grip and a chip-resistant design. Perfect for use in the gym, a great alternative to single-use bottles and as a flask for your camping or hiking adventures.