Marc M. wrote a review of Hydro Flask 21oz. Standard Mouth Water Bottle on July 12, 2013
Familiarity: I've put it through the wringer
This is the real deal, have had several and i think this brand is the best insulated stainless bottle on the market, standard is perfect size to drink from although large mouth would be better for soups and foods.
have used both hot and cold excels at both, plus clean up is simple.