Comotomo Silicone Baby Bottle Gen 2 8oz Wide-Neck Dual Anti-Colic Vents, Green, Double Pack Review (2026)

Who this bottle fits

This double pack is built around the 8oz size, which suits babies who are already taking larger feeds rather than newborns just starting out, since most newborns begin on smaller 4 or 5oz bottles before working up to 8oz. Parents who already own smaller Comotomo bottles and are ready to size up, or who are shopping directly for an older infant, are the natural buyers here. The soft, breast-like silicone body is often chosen by parents trying to ease a breastfed baby onto a bottle, since the squeezable shape and nipple are designed to feel more like nursing than a hard plastic bottle does.

What is new in the Gen 2 design

The headline update over the original Comotomo bottle is a dual anti-colic vent system, which the manufacturer says helps maintain a more consistent milk flow while reducing the amount of air a baby swallows during feeding. The bottle body is made from food-contact grade silicone while the collar and other hard components use PPSU and PP, and the whole bottle is free of BPA, PVC, and phthalates. Comotomo also updated the fastening system in Gen 2 for a more stable fit between the nipple, collar, and bottle body, aimed at holding up better through repeated cleaning and sterilizing cycles compared with the original design.

Cleaning and daily use

The wide-neck opening is the other signature feature carried over from the original bottle, designed so a standard bottle brush or even a hand can reach every corner without needing a specialty narrow brush. Comotomo states the bottle is top-rack dishwasher safe and can also be sterilized in boiling water for five minutes, and it is listed as safe for microwaves, dishwashers, and bottle sterilizers when used as directed. The included nipples for this 8oz version are a medium flow, generally suited to babies around three to six months, so parents should check flow rate against their baby's age and feeding pace rather than assuming it matches every stage.

How it compares with Dr. Brown's glass option

Against Dr. Brown's Natural Flow Options+ glass bottles, which also rank well in our guide, the trade-off is largely silicone versus glass. This Comotomo bottle is lighter, more flexible, and less likely to break if dropped, while the Dr. Brown's glass version avoids plastic contact entirely and comes in both 8oz and 4oz sizes in one pack, covering more feeding stages out of the box. Comotomo's dual vent system is simpler than Dr. Brown's internal vent insert, with fewer parts to wash after each feed, which some parents find easier to keep up with daily even if it means fewer size options in a single purchase.

Verdict and who should size down

For an older infant already on 8oz feeds, this Gen 2 bottle delivers a real upgrade over the original Comotomo design through its added anti-colic vents and refined fastening system, while keeping the soft body and wide neck that made the brand popular in the first place. Parents of a newborn should start with a smaller size bottle, since this double pack does not include anything below 8oz, and families who want to avoid washing multiple silicone parts might prefer the simpler internal vent of a glass alternative. For anyone already committed to the soft silicone feel, this is a worthwhile version to buy.

Frequently asked questions