Our redesigned Sleep Bag Swaddler in Periwinkle is an all-in-one sleep system that comforts your baby from the newborn stage to the next. Made from our signature bamboo rayon, our patent-pending sleep bag swaddler functions as both a swaddle and a 1.0 sleep bag. The attached swaddle wrap features a Velcro closure for a secure and adjustable fit, and is fully removable once swaddling is no longer recommended. There's also a removable elastic loop that is fastened with a snap closure that can be placed around the bottom of the sleep bag. The additional step of tightening the sleep bag helps for little ones who haven’t fully grown in to their new sleep bag yet. Underneath the wrap is our award-winning sleep bag, which acts as a wearable blanket to reduce the risk of SIDS and improve your baby’s sleep. 97% bamboo rayon, 3% spandex 1.0 Tog Sleep Bag in Size XS Extremely soft, breathable, stretchy and luxurious fabric Fully removable swaddle wrap attached to the sleep bag via Velcro, which allows for different positioning of the swaddle as baby grows. Swaddle piece features 2 layers of buttery soft bamboo rayon, an adjustable Velcro strip closure to form a perfect swaddle on babies of different sizes. Removable elastic loop fastened with a snap closure When used on its own after swaddling piece is removed, sleep bag is designed to safely fit a newborn up to 13 lbs. J-shaped double zipper on the sleep bag for convenient diaper changes US and International patent pending Disclaimer: Following safe swaddling practices, remove the wrap once your baby is 8 weeks old or able to roll over, whichever one comes first. The wrap is intended to only be used with its corresponding sleep bag in size XS.