There is an insert that goes in the bottom of the lid that prevents it from spilling. The lids screw on firmly so no worries about spills or leaks. They are sturdy and not easily tipped.

The bottle itself is also very easy to clean as it is washable in the dishwasher. No issues being ran through our dishwasher on high heat either. Easy to clean no leaking.

These cups are fantastic. There are three different colors cups in the box which is green, yellow and orange. I also love that these cups are clear so you can see exactly how much liquid is in them.

These are the best sippy cups. I love that this product isn’t * rubbery, but straight silicone. The spout is hard but has a soft feel to it.

All the handles are not centered with the spout, they are off set. Hate them. Also waaaay too many pieces. And not sure why all the reviews say it's leak proof… it's not!