Enjoy optimum drinking temperature for hours: Our TempShield double wall, vacuum insulated technology guards the temperature of your coffee or tea keeping it hot for hours. It also ensures no condensation or heat transfer to the outside of the flaskSolid and eco-friendly travel flask: All of our flasks are made with pro-grade stainless steel, a metal known for its resistance and purity. It also protects against the transfer of flavours. The flask is easy to clean and is dishwasher safeBPA-Free flask with a Leak Proof Flex Sip Lid: Thanks to the Leak Proof Flex Sip Lid, you can carry and sip your drink without spraying it on. The flask is also compatible with our Hydro Flip Lid, Wide Mouth Flex Cap and Wide Mouth Straw lidTake along with you: This insulated water bottle is compatible with most backpacks and car cupholders and is therefore the perfect everyday carry-on. Its powder coat means an easy-grip, sweat-free, and extra-durable flask that you can take anywhere100% Customer and product satisfaction warranty: We stand behind our products and have great faith in our products. HYDRO FLASK is committed to high standards of durable and robust materials. HYDRO FLASK guarantees this product with a limited lifetime warranty against manufacturer defects