Contigo Kids Water Bottle with Straw - 2 Pack, 14 oz, Autospout Technology – Spill Proof, Easy-Clean Lid Design Ages 3 Plus, Dishwasher Safe Cosmos & Gummy Sharks

These cups are great, the straws are built in and are able to be unscrewed for ease of cleaning! They have a great mouthpiece that doesn’t leak!

Got this for my son when he was 18 months old. He is super cautious about trying out new things, so it took him a while to decide to drink out of these bottles. But once he tried it, he was totally fine with it! Pros: -spill-proof in the diaper bag. I haven't had a leak yet! If I hold it upside down and shake it, I might get a drop or two -my son can open the bottle easily with the button (and has since about 18 or 19 months), and can shut the straw too, though he doesn't often bother to do that. He can entertain himself for a few minutes saying "open...shut...open...shut..." and fooling with the mechanism. -I like that the whole thing is dishwasher safe and that the top parts are all connected to each other. Disassembly and reassembly are easy. Con: because it's non-spill, it requires a lot of suction to drink out of it. My son's pretty used to that at this point, though, as it's true of most of his cups!

my kids have been using this water bottle and it is indeed spill proof even when it is open.

These are a main stay of my house since getting them. They are super easy for my 3 year old to use and because of how the stray is connected it is very easy to clean and impossible to lose. Dishwasher safe. Would buy again.

These are great bottles and my kids love them! I have bought these before and I would buy them again and again. I only had to buy new ones since my child decided to use his teeth an bite through the silicone straw.