Our best selling double layer sensory swing is made from a soft premium blend of 95% Cotton + 5% Spandex that can hold up to 200 lbs. Our signature double layer sensory swing is made from a soft high quality blend of 95% Cotton + 5% Spandex that can hold up to 200 lbs. We chose only the highest quality cotton/spandex fabric to craft our swings. The double layers provide extra comfort and security, and will not cause the swing to stretch to the ground. How does it work? Vestibular swings promote coordination and balance, strengthen muscles, and improve motor skills. The compression of the swing helps your child feel secure similar to getting a hug promoting feelings of security and relaxation, while the swinging motion provides sensory input, endless possible positions, and indoor fun!