Baby's arms are secured in a full swaddle position helping them sleep longer and better, arms secured with velcro, romper design allows baby's legs to fall out naturally, envelope opening to keep feet cool or warm as necessary. Simplifies what the parents dress the baby in as it is a combination of a romper and swaddle, requiring nothing to be worn underneath. Tested and approved by British Safety Standards. Perfect for room temperature 24-27*C.
Small = Newborn to 3.5KG
Large = 3.5 KG to 7KG