What is the stay-put strap for on the Natural Curve Nursing Pillow?

The buckled stay-put strap is designed to reduce slipping and discomfort while sitting and holding your little one multiple times a day. Easily buckle it in place on the side of the pillow for a secure fit. The stay-put strap should always be removed and buckles tucked for supervised tummy time play. Never use the stay-put strap to carry baby on the nursing pillow.