The Klean Kanteen Classic is an exceptional choice for daily use. It is easy to drink from and simple to clean. Its durable body can handle a lifetime's worth of knocks and drops, and will not leak in your backpack. In our three months of reviewing, we also fell for its ability to be used in sports and outdoor recreational activities, from ice hockey and soccer to rock climbing and camping. This product is non-living proof that metal bottles do not have to be a heavy pain in your backpack — instead, this one is almost just as light as its plastic competition. The bottle itself is perfect for virtually any activity and it could be at home on the trail or next to us in a yoga class.
In previous years, we tested this bottle with the classic lid. This year, we tested out the Klean Kanteen Sport Cap, tested here, which is claimed to assist with drinking on the go. We found the Sport Cap to be a bit finicky in terms of leakage and closure. Without it, the Klean Kanteen is still a great option for a lightweight, metal bottle, but the cap adds complexity and thus reduces the bottle's overall metrics score.