Sharks Spill Proof Adult CREWCUP 40oz

Love the design of the cup. It keeps my drink cold with ice well over 12 hrs. It is definitely spill proof. Only issue with this is that when you drink from the straw it creates a vacuum seal and makes it like trying to suck a thick milk shake through and stirring straw. I cut the air escape whole a little to allow better circulation and now no issues with drinking.

These cups are truly delightful! However, it must be noted that the shipping process does take a considerably long time. On the positive side, they are incredibly easy to clean and appear to be quite durable. I have purchased three for my children and a 40oz one for myself!