The Amazing Baby sleeping sack surrounds your baby in cozy softness. Our 100% microfleece wearable blanket is perfect when baby is ready to transition from swaddling, replacing loose blankets for safer sleep, so everyone can sleep better. The premium microfleece with cheerful design is incredibly soft and keeps looking great wash after wash. The handy 2-way zipper zips down from the top making it easy to place baby into sack and also zips up from the bottom making diaper changes easy. Machine washable. Designed and manufactured by SwaddleDesigns exclusively for Amazon.