Perfect size & so durable
I resisted a Nalgene for a long time because it felt too trendy, but in preparation for a recent backpacking trip decided to bite the bullet. I waited too long! It was great for the trip, and I can attest to its durability. After crossing a pass and hiking along a ridge for a few miles I accidentally dropped it and watched it roll many feet over a scree field before falling off the cliff. Due to our position we could see where it landed and it was still intact! Way way too far to retrieve though, so sadly I had to replace. I will say the sipper insert is a must for me and makes it a lot easier to drink out of.