Stainless steel and cupholder compatible, the reusable, refillable 21 oz Standard Mouth insulated water bottle keeps cold drinks cold for 24 hours, hot drinks hot for up to 12 hours, and holds enough hydration for hours of fun. A most trusted companion, the 21oz Standard Mouth Water Bottle from Hydro Flask is refillable, reusable and insulated so that you can enjoy hot or cold drinks on the go. Constructed from 18/8 pro-grade stainless steel in a design that is compatible with cup-holders for ease on the move, the bottle is hard-wearing against bumps and knocks and keeps your drink tasty with no flavour transfer. The TempShield®️ double-wall vacuum insulation will keep your cold drinks chilled for up to 24 hours and your hot drinks warm for up to 12. The Flex Cap not only makes it easier to carry your bottle around with you but is also leakproof, saving you the trouble of leakage while it’s in your bag. The Color Last powder coat on the face of the bottle is durable and sweat-free, so it’s built to last any adventure. Stay hydrated wherever you are, wherever you’re going, with the Hydro Flask 21oz Standard Mouth Water Bottle and brighten up your day in this vibrant blue colourway. No matter where your day takes you, the Hydro Flask 21oz Standard Mouth water bottle is your reliable companion. Whether you're embarking on a mountain hike, or hitting the gym, this bottle ensures your beverage tastes just the way you like it, for as long as you need it to. Thanks to Hydro Flask's innovative TempShield double-wall vacuum insulation, your drink's temperature remains exactly as you desire. The flask's double-walled inner and outer chambers create a vacuum, effectively preventing heat transfer through conduction. The insulated Flex Cap lid further inhibits temperature changes through convection. Inside, a reflective lining enhances heat retention, setting this flask apart as the ultimate temperature guardian. It can keep your drink refreshingly cold for up to 24 hours or piping hot for up to 12 hours. The 21oz Standard Mouth design features the convenient Flex Cap, complete with a practical carry-loop, making it perfect for those constantly on the go. Its circumference e...