HAL1051 Features: * Use over regular sleepwear to take the place of loose blankets * Approved as Hip Healthy by the International Hip Dysplasia Institute * Reduces the risk of SIDS and suffocation, keeps baby covered and cozy all night * Inverted zipper for easy diaper changes * Back is Best embroidery reminds caregivers to place baby on his or her back * Sleeveless design to prevent overheating and re-breathing into sleeve * Medium fits: 6-12 months, 26-30"", 16-24 pounds * Small fits: 0-6 months, 23-26"", 10-18 pounds Options: * Available in medium, small sizes Color/Finish: * 100pct certified organically-grown cotton, the fabric is free of chemical dyes, softeners and finishes. Size small fits 10-18 lbs