Hello J.,
Dr.Brown bottles are the best. If you just introducing your little one to the bottles you might want to give him gas drops before each feeding. Here why Dr. Brown bottles are the best;
Features
Easy to clean, dishwasher safe, connects directly to breast pumps
Patented system reduces colic, spit-up, burping, and gas
Internal vent prevents air bubbles from forming in milk and formula
No vacuum, helps prevent fluid in the ear; Prevents nipple collapse
Easy-to-read formula level gauge on bottle
Product Description
Dr. Brown's bottles are easy to clean, dishwasher safe, and connects directly to breast pumps. Its patented system reduces colic, spit-up, burping, and gas. Its internal vent prevents air bubbles from forming in milk and formula. Helps prevent fluid in the ear and nipple collapse. Easy-to-read formula level gauge on bottle.