Envelope Swaddling Sleeping Bag. Swaddling sleeping bag for newborns and premature babies. Envelope is an ideal sleeping bag for the first few months. Your baby will feel protected and free to move. Soft and warm thanks to the inner fleece lining. The baby will be secure and snug but still free to move his legs thanks to the shape of the foot muff that adapts to fit the childs body. Benefits: Universal - Can be used on any Group 0/0+ car seat, carrycot, baby carrier, pushchair, crib, cot, hammock. Hybrid Cotton and Polyester fabrics, very light and soft to the touch while protecting the baby from the cold thanks to the inner fleece lining. With Velcro on the flaps for more secure fastening. Compatible with the Nest baby carrier of the Groowy car seat. The Baby will be held and wrapped up snugly, but at the same time free to move their legs thanks to the shape of the sleeping bag that adapts to their body. Features: Suitable from +0 months 50% cotton, 50% elastan Inner fleece lining Op