Wide 27oz Busy, on the go days call for a bottle that stands up to the challenge. 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. Wide 40oz Holding 8oz more than a quart sized bottle, the 40oz Kanteen Wide is the ultimate bottle for long road trips or the backcountry. The extra wide opening is more than 2 inches in diameter for quick filling, pouring and cleaning, and the stainless steel thread design works with standard backcountry water filters. Wide 64oz The 64oz Kanteen Wide was created for one simple reason: we wanted a huge, half gallon bottle for transporting and storing water and other drinks. Think of it as a filling station that's easy to handle and pour from. On river trips, at all day picnics or even car camping, use your 64oz Wide instead of dealing with big, unwieldy plastic jugs.