Meet the HYDAWAY : a bottle you can carry with you everywhere you go to stay hydrated. This portable hydration system expands to a full-size bottle to hold your water and collapses flat, so you can put it in your pocket. You can fit this in most cup holders. It is made of flexible, food-grade silicone and is dishwasher safe. HYDAWAY will be available in small and large sizes (12 oz and 21 oz respectively). It will be available in 6 colors.
This is great for kids and adults. It is not too expensive either. You can order yours on Kickstarter.