NUK First Essentials Hard Spout Sippy Cup, 10 Ounce, 4 Pack (Assorted-Aquatics)

We have bought these cups for all of our toddlers. Even when thrown on the floor hundreds of times they do not crack and the anti leak valve stays in place! Cups do not leak when valve is used. They are also easy to clean. Highly recommend!

These are my favorite sippy cups because they are durable, do not leak and easy to clean. The majority of cups leak unless locked closed (especially water bottles with straws). There is a simple stopper that allows drinking with child sucking on spout but does not allow leaks when the cup tips over. Can't recommend enough - these are hard to find but worth the search.

These sippy cups have held up super well so far. No issue with leaks. Cleans easy. We normally just take it apart and just throw it in the dish washer!

We replaced all of our cups with these!

Inside the mouth piece

It is definitely NOT leak proof!! Disappointed and not worth the money. Poor quality, doesn't even have the metrics on the side of the cup.

My son and I both love these cups they’re spill proof, easy to clean, and durable