\nThe double-walled insulation keeps drinks hot for 6 hours or cold for 12 hours. \n360° closure - open all around so you can drink from the bottle in any position. \nWith the accessory closures, the bottles can be adapted to different purposes. \nDishwasher safe for effortless and hygienic cleaning. \nRobust design for long service life. \nLeak-proof click closure. \nBPA free.