HALO SleepSack Swaddle 100% Organic Cotton. The Halo SleepSack Swaddle replaces loose blankets in the crib that can cover your baby's face and interfere with breathing. Made of 100% certified organically-grown cotton, certified by the Organic Cotton Exchange 100 Standard and Oeko-Tex 100 Standard, the fabric is free of chemical dyes, softeners and finishes. In addition to being safer and , it helps babies sleep better, too. Its adjustable swaddle wrap immobilizes your baby's arms to prevent the "Moro" or startle reflex. And, it is the only 2-in-1 adjustable swaddle that allows for swaddling arms in or arms out for baby's comfort and to ensure an easy and gentle transition to the SleepSack wearable blanket when it is time to stop swaddling. Used in hospital nurseries nationwide, the Halo SleepSack Swaddle is the #1 choice of hospital nurseries, recommended by safety organizations and is approved as "Hip Healthy" by the International Hip Dysplasia Institute. HALO supports non-profit organizations like First Candle/SIDS Alliance and The Canadian Foundation for the Study of Infant Deaths. Use over regular sleepwear to take the place of loose blankets. Discontinue swaddling when the baby shows signs of rolling over or breaking out of the swaddle wrap. 100% organic cotton interlock. Size newborn fits 6-12 lbs. Imported. 100% Polyester.