HALO's fan-favorite bamboo fabric now comes in the best-selling SleepSack swaddle: a buttery-soft bamboo viscose swaddle that keeps baby cozy for longer, more restful sleep. The signature 3-way adjustable design allows wrapping with arms in, hands-to-face, or arms out to match baby's sleep style and help reduce the startle reflex. Adjustable hook-and-loop fasteners create a snug, secure fit, and the 2-way zipper makes diaper changes easier. The roomy sack design is approved by the International Hip Dysplasia Institute as hip-healthy. 2.0 TOG for cooler rooms; replaces loose blankets for safer sleep. Machine washable.