Introducing the world’s first stainless steel double-walled collapsible cup. The stylish collapsible on the go Cup using our patent pending technology. 400ml / 14oz collapsible cup with a stainless-steel outer shell and a BPA free plastic liner that collapses from 13.8cm down to 6.5cm. Its sold with a pouch and can be easily carried in bags or a jacket pocket. Suitable for hot and cold drinks double walled insulation with a push on lid with anti-splash drinking spout.