When you're on-the-go, the 27oz Klean Kanteen makes it easy to keep the energy flowing. The extra wide opening is more than 2 inches in diameter and makes filling, pouring and cleaning the bottle a cinch, plus the slim design fits into most cup holders.

The 27oz is also the perfect size when you're ready to ditch the hustle and bustle of the city for the peace and solitude of the trail. The threads are 100% stainless steel and the design works with standard backcountry water filters. The inside of the wide-mouth caps is all stainless too, so your drinks never touch plastic. In fact, the only plastic on the Klean Kanteen™ Wide is on the outside of the cap; and of course it's BPA-free polypropylene (pp#5).