Chilly’s was founded in 2011 by James Butterfield while in his final year at university to solve the problem of keeping drinks cold and the doing away with wasteful plastic bottles. Chilly’s bottles were developed through gaining awareness of the amazing technology of Double Wall Vacuum Insulation. It works by creating an airless vacuum space between two layers of stainless steel walls. The result is superior insulation that virtually eliminates temperature change and provides an environmentally friendly alternative to harmful plastic bottles. The bottle will keep your drink cold for up to 24 hours, or warm for up to 18 hours.