Hunu

Coffee on the go? Day out in the city? Camping? Hiking? Cycling? HUNU is a collapsible, most convenient, and leak-proof cup you’ve been looking for! The cup is made with the world’s safest food-grade materials and slim enough to fit in the smallest pockets or bag.
The cup itself is BPA-free, Phthalates, and all other nasty chemicals, made from FDA and LFGB certified food grade silicone. The lid is made from bamboo fiber and resin. Besides the cup being incredibly easy to clean it is also dishwasher safe and HUNU cups can go in the microwave and freezer (not the lid or band).
The brand was designed in London and only took a month to become one of the most successful crowdfunding projects in history. It can now be found in over 70 countries around the world.