The HALO SleepSack Swaddle in the Circles Grey print is made from breathable 100% cotton muslin, lightweight and gentle on baby's skin. The 3-way adjustable swaddle wraps baby with arms in, hands-to-face, or one or both arms out, adjusting to baby's sleep style. Adjustable fasteners create a perfect fit that nestles baby like a soft blanket without the risk of sleep-related dangers. An inverted zipper opens from the bottom for easy diaper changes, and the roomy sack design is recognized as Hip Healthy by the International Hip Dysplasia Institute. Signature Back is Best embroidery reminds caregivers of the recommended sleep position. Small size.