Product Description Valeo Slimmer Belt with Zippers is specially designed with zipper closures for universal size adjustment. It is made of soft neoprene for extra comfort and provides back support. Sauna-action helps shed excess water and it helps slim and trim appearance. It is hand washable and one size fits most. Amazon.com The Valeo Slimmer Belt is designed to slim and trim your profile while providing back support and helping you shed excess water weight through added heating at the waist. The belt is constructed with a soft neoprene interior for comfort and features specially designed zipper closures that offer universal size adjustment to fit most waist sizes. The belt is hand washable.