there are stopper that go with them bottle i use them and they dont leak u can get the at walmart

Mine leak badly too. It's so annoying. When you go to put the blue part in, make sure it's pushed into the nipple ring tight. It helps the leaking a lot. I bought some because my sister used them with my niece who had bad acid reflux. My son gets gas really bad so I thought they would help. I honestly don't see a difference though.

when i take it out the baby bag its empty @samijoy

Yeah same with me even if i cover it with the top & shake it when i take the top off a whole bunch of milk pours out @samijoy

@maimommy31, I go to shake it and I have formula all over me. And yea when I pull them out of my bag they're like sticky and leaked all over

i hate it i thought they were the best bottles i guess i was wrong .. @samijoy

Yes! I'm having this same problem!!