BEST OF THE BUNCH

It may look simple on the outside, but the internal venting system in Dr. Brown’s Natural Flow Glass Bottle ($13/2 pack) allows air to seep through the nipple collar without getting into breast milk or formula.
>handi-craft.com
Designed to use with a collapsible liner, the Playtex Drop-Ins Original Nurser, $3, keeps air from entering your baby’s stomach and causing painful gas. Each bottle comes with five pre-sterilized liners. Fifty 8-ounce expandable liners, $5.
>playtexbaby.com
A favorite for fussy babies, the Avent Natural Feeding Bottle, $5/4-ounce bottle ($6/9-ounce bottle), features a one way air valve, ensuring that only liquid (not air) passes through the nipple.
>aventamerica.com
A colorful, removable sleeve covering the WeeGo Glass bottle, $18 each, is made from nontoxic silicone and prevents the bottle from breaking when dropped. Both the bottle and sleeve can be boiled and are dishwasher safe.
>gobabylife.com
The realistic breast-shaped design of the Adiri Natural Nurser Ultimate Baby Bottle, $13 each, helps ease the transition to bottle-feeding. Three stages (each a different color) provide different flow rates.
>adiri.com