The Perry Mackin Natural Feel, Anti-Colic Silicone Baby Bottle is made of 100% food-grade silicone, has a wide-mouth design with a slimmer silhouette, and comes in both 6- and 9-ounce versions. It provides a realistic "latch" for breastfed babies and is soft for them to grab onto.
The bottle is easy to clean and you can sterilize it with a dishwasher, microwave, boiling water, or any baby bottle sterilizer. Both the mouth and the bottle itself are slimmer than the Comotomo silicone bottle, so it has a smaller profile.
I attribute Perry Mackin's wider top and longer nipple design to really mimicking what a breastfed experience is like for a baby. The nipple shape on this bottle is longer than some of the others I tested for breastfed babies. Because it mimics an actual nipple, I found that my bottle-fed baby had a harder time using it since she has never nursed at the breast.
Perry Mackin offers four different nipple steps, starting with a one-hole nipple for newborns that has a slower flow and going up to a full-flow nipple at around 9 months. All the nipples feature a one-way colic vent to reduce air bubbles and fight colic.
I like the design of this bottle, especially because it has a special joint-locking system that makes it easier to secure the top and prevent leaks. Plus, it has several add-ons, including straws and handles for older babies.
But it's also pricey, and for me, the biggest drawback was that my strictly bottle-fed baby had a hard time using it since it so closely mimics the breast. All things considered, it's good for breastfed babies and may be a consideration for those who are strictly bottle-fed.
Pros: 100% silicone, easy to use and clean, natural feel for breastfed babies, anti-colic, fits in most diaper bag bottle pouches, warms quickly, dishwasher safe