The Woombie Wrap and Snap was designed for the baby in need of a bit more upper body security. Simply secure wing to create an increased swaddle effect. Wrap and Snap is a one piece unit, the wrap is not a separate item. -Place baby in Woombie, tucking feet in. -Snap the chin flap , and zip. -Wrap the wing to the right firmly and then behind baby. -Secure wing in front, adjusting the firmness as needed.