What is the belt made of? KF Operations Manager, JSCULPT Fitness® September 24, 2018 19:28 Follow The belt is made of latex on the outside and cotton on the inside. Related articles Can you wear the belt while swimming? What makes your belt different from other fitness belts? Can I wear my belt to sleep? The belt is irritating my skin, what do I do? How long is the belt? Comments 0 comments Please sign in to leave a comment.