95% Cotton, 5% Spandex Self-Soothing: Woombie Original Swaddle is a wearable baby blanket that encourages back sleeping and eases the transition from womb to world; the stretchy but snug fit moves "with" the baby, re-creating a womb-like environment and simulating the feeling of being held, touched, and cuddled Innovative Design: Designed by an RN BSN and nursing team, this ergonomically shaped swaddle blanket is effective and easy to use; patented design Comfortable and Breathable: The 95% cotton/5% spandex fabric promotes gentle airflow; the design is hip and shoulder friendly and the narrowed waistline gently compresses the tummy, providing additional comfort for your baby Easy to Use: No origami required, this easy to use one step baby swaddle will not unravel as a blanket can; two-way zipper allows for easy diaper changes Product Specifications: Package includes (1) Woombie Original Baby Swaddling Blanket in size Newborn; intended for babies weighing 5 - 13lbs.; swaddle is approximately 8 inches across and 22 inches long; easy to clean and care for