The Stojo® pocket cup is ultra-portable, leak-proof, collapsible, & reusable. Designed by coffee lovers, it's a convenient alternative to bulky travel mugs & better for the environment than disposable cups. Suitable for every situation! Take Stojo® to the office, airport, gym, cafe, or park. Perfect for hiking, skiing, snowboarding & camping too! Once you've finished your drink, just collapse, seal, stow & go!