Made from 100% premium cotton breathable Muslin Fabric with attractive print. Dual Layer Muslin Wearable blankets for a better, cozy and safer sleep. Sleeveless Design to reduce the risk of overheating. Perfect for babies who can roll over but still needs the security of a swaddle 2-way zipper makes swaddling and nighttime changes easy. Safety tab keeps zipper away from baby's chin and neck. Size: 0 to 6 Months (70 cm L x 29 cm Chest x 43 cm Bottom)