Enjoy optimum drinking temperature for hours: This leak proof lid has Honeycomb Insulation that keeps drinks hot for up to 12 hours and cold for up to 24 hours Pair the lid with any of our Standard Mouth bottles: This leak-proof lid is compatible with all our Standard Mouth bottles Carry-on handle: This leak-proof Flex Cap features an easy-to-carry strap with stainless steel pivots that allow the strap to move easily. You can take your bottle with you wherever you go High Quality and safe materials: This lid is BPA-Free and Toxin-Free that is easy to clean and is dishwasher safe 100% 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