I love these, as I lose them I continue to buy new ones. The pop up straw is great, but can be hard to clean inside the cap. The bottles can take falls without cracking. The lock on the cap is helpful to keep from spills and to keep younger friends from stealing sips.Its not really insulating, and cant really be used for warm things.I will continue to buy these.
Rating: [5 of 5 Stars!]