Ohyo Collapsible Water Bottle
Ohyo is the handy, collapsable water bottle that's easy to take anywhere. Extend an Ohyo to hold 500ml of water. Then (when empty) squish up your Ohyo to fit in a pocket.Using (and re-using) an Ohyo avoids the need to buy environmentally-damaging  bottled water. Ohyo is free of BPA and phthalates, made in Engalnd, and still works after 10,000 squishes!