Parker Pirentewrote a review of Pupwerks Original PupCup on July 29, 2017
Familiarity: I've used it several times
These pupcups are awesome for you canine companion! It lives on you water bottle and barely even notice it is there. Fits Nalgene and the 32 oz HydroFlask very snug! That is also a small con is they are a little tough to get on and off when new but they soften up a little bit over time and make it easier. Makes a great gift for any dog owner!