The anti colic bottle is just one of the innovative developments from the mam design studio the vented base ensures controlled milk flow by balancing air pressure inside the bottlethe teat is accepted by 94 of babies who used it making it perfect for when mum wants to be a bit more flexible the anti colic bottle also self sterilises in 3 easy steps ensuring simple safe bottle cleaning at home or on the go the mam newborn feeding set includes 2x 260ml bottles 2x 160ml bottles 1x soft bottl