+ TempShield double-wall vacuum insulation keeps drinks cold up to 24 hours, hot up to 12 + Flex Cap is leakproof when closed + Honeycomb™ Insulated Cap for maximum temperature retention + Made with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transfer + Color Last™ powder coat is durable, sweat-free and colorful + BPA-Free + Dishwasher safe + Not for use on a stove, in a microwave or freezer + Keep hot liquids out of the reach of children Hydration on the go just got easier with the leakproof, insulated Flex Straw Cap. Add it to your favorite Standard Mouth Hydro Flask bottle to easily enjoy cold hydration anywhere. IDEAL DRINKING TEMPERATURE: Our double-wall vacuum-insulated bottle keeps beverages cold for up to 24 hours and hot for up to 12 hours. The TempShield technology prevents condensation and heat transfer to the outside. BETTER DRINKING ON THE GO: With double-wall, vacuum-insulated technology, our water bottle maintains the IDEAL temperature. The leak-proof Flex Straw Lid allows for easy drinking with just one hand. DURABLE WATER BOTTLE: Our eco-friendly, sturdy stainless steel bottle is perfect for any type of sport. The durable construction withstands everything life throws at it, while keeping the taste of your drink intact. DISHWASHER SAFE: Our water bottles come with a powder coating that makes cleaning a breeze. Enjoy more leisure time and less work with this convenient feature. SATISFACTION GUARANTEED: We offer a lif etime warranty against manufacturer defects. HYDRO FLASK stands behind our durable and robust materials and is committed to high standards.