The camelbak kickbak tumbler 600ml this insulated vessel does triple duty as a coffee mug a water bottle and a pint glass the kickbakrsquos vacuum insulated double walled design keeps drinks cold for 8 hours and hot for 4 the lid is also designed to switch between hot and cold drinks it flips back to offer small opening for sipping and a larger one for camelbak kickbak tumbler 600ml features vacuum insulation keeps beverages cold for 8 hours and hot for 4 hours splash