Klean Kanteen bottles are such a great alternative to bottled water that you will want to take them everywhere you go. With the Klean Kanteen Sling, you can do just that. Whether you're toting your Klean Kanteen Water Bottle around campus, on the trail, at work or at play, you'll never be far from 40 ounces of delicious water in a stylish Klean Kanteen stainless steel water bottle.