Almost Perfect, one big flaw

I so wanted to love these bottles. The nipple shape is great, and they're easy to clean. I love that they are glass instead of plastic, and we found silicone sleeves that fit the bottles. BUT the lids have to be sitting perfectly or else they leak when topped! We've tried all the tricks in the book, sometimes it worked, sometimes we ended up with a sodden diaper bag and not enough breastmilk. I've seen some promising alternatives, but I just really like the shape of these haha.