•Easily switch from breast to bottle and back again
•BPA and BPS free feeding bottles, crafted from polypropylene and silicone
•AVS™ Anti-Colic Air Ventilation System to reduce intake of air, a potential cause of colic
•Compatible with all traditional Lansinoh Breast Pumps
•Comes complete with NaturalWave™ teat clinically proven to reduce nipple confusion
•Soft, flexible, wide, textured teat base for easy latch-on
•Clinically proven to encourage baby's 'wave-like' tongue movement, promoting instinctive sucking action.