The fact that they have different colors and sizes is amazing. The straw is a little weird at first its like rubber material, but after a week of use you will be used to it. Other than that I would give this water bottle a 2 thumbs up!!!
I absolutely love this water bottle, because of the size and sippy. The twist cap is a pain while exercising and the sippy makes for drinking water very simple to the point where I've been drinking more and more water. I recently transitioned to all water and it was very tough switching over. But this Camelbak bottle sure has made it as easy transition and I would recommend this bottle to ANYONE.