When it's time to transition from the swaddle, the wearable blanket is a warm and cuddly option. Baby cannot kick it off, thereby ensuring baby sleeps soundly throughout the night. use over regular sleepwear to take the place of loose blankets inverted zipper for easy diaper changes used in hospital nurseries nationwide, recognized as Hip Healthy by the International Hip Dysplasia Institute sizes: small fits 10-18 lbs., medium fits 16-24 lbs., large fits 22-28 lbs. polyester washable imported