Dr. Brown's Anti-Colic Options+ Narrow Glass Bottle Starter Set, 4 oz / 8 oz Bottles, Level 1 and 2 Nipples, and HappyPaci Pacifier 

We absolutely love these Dr. Brown's glass bottles. I made the switch from the regular plastic version because I've been moving toward a more non-toxic approach in our kitchen—especially when it comes to items that come in contact with food and drinks. Reducing plastic and limiting microplastics has become a priority for our family, and these bottles were a great step in that direction. I'll admit, using glass with little ones can be nerve-wracking, especially with the occasional accidental drop-- or intentional toss! But these bottles have been surprisingly sturdy. The glass is thick and feels very durable, and they've held up beautifully through daily dishwasher use.

My biggest concern was the bottle leaking due to the reviews I read after I purchased several bottles. But, I gave them a shot anyways and they haven't leaked at all, I honestly haven't tried them without the vent system so I can't give feedback on that. My baby has used dr browns options bottles in plastic, but we decided to upgrade to the glass since we figured it would last more especially since we want more babies. All of my concerns are gone now that my baby has started using them and am satisfied with my purchase. I contacted dr browns concerning the sleeves and they responded within a few days letting me know that they won't be out on the market until a few months but now that we gave the bottles a shot and to see my baby happy makes me happy! Thank you Dr. Browns