The Seattle Sports H2Duo 800ml Liter Water Bottle, Silver is a clever design that overcomes the problem of cleaning your water bottle properly on the go. It is made from stainless steel and unscrews in the middle, letting you easily reach every part just with a normal sponge. It also has several uses. Of course it's a water bottle with watertight cap at the top and the middle opening lets you add ice easily before filling it up. Separated into both halves you can use the bottom half as a straight glass or mug. The top half forms goblet-shaped glass and both are suitable for cold or hot drinks. It's an awesome bottle for travelers, backpackers, hikers, mountaineers and wilderness adventurers. You and your friend can drink your coffee from it in the morning, then easily wash it up and use it as water bottle throughout your day's explorations.