Copper Fit Core Shaper is designed to provide customized core compression. It features an adjustable, double-strap closure that allows you to set your desired level of core support and includes four built-in stabilizers for optimal lower back support. It’s breathable, adjustable core support and shaping compression for all-day comfort. Virtually undetectable under clothing, Core Shaper can also be worn over clothing. Make sure to order the correct size – measure one inch below the belly button. S/M: 26″-32″ Fits Dress Size 4 to 10; L/XL: 34″-42″ Fits Dress Size 12 to 20. Tight fitting garments can cause heat rash or other skin conditions. Copper Fit products provide compression but should not be so tight that circulation is restricted. If pain persists or a rash develops after using this product, immediately discontinue use and consult a physician. Neoprene: This product contains a synthetic rubber known as neoprene (polychloroprene). Neoprene has the potential to cause irritation or allergic skin reactions in some individuals. If you experience a skin rash or other irritation when wearing this product, immediately discontinue use and consult a physician. Caution: This Product May Contain Natural Rubber Latex Which May Cause Allergic Reactions. Do not use this product if you are or may be allergic to rubber latex.