SwaddleMe Arms Free Convertible Pod – Size Large, 3-6 Months, 2-Pack (Lucky Star) Zip-up Baby Swaddle Helps Transition to Arms Out Sleep for Safe Rolling and Self-Soothing New in box but may have been opened to look at item. It is all brand new, unused/unwashed. 93% Cotton, 7% Spandex SIZE LARGE: The SwaddleMe Arms Free Convertible Pod in Large fits babies 3-6 months, 14-18 pounds, up to 30 inches long.