Get the Support Your Need CopperFit PRO is designed for athletes, weekend warriors or anyone with an active lifestyle seeking relief. CopperFitPRO is built tough to stand up to your most extreme training, but still comfortable enough for everyday wear. All Copper Fit products are made of high-quality performance fabrics with wicking technology to help you stay cool and dry. How Quickly Will I Feel the Benefits Many people report feeling immediate relief when wearing CopperFit. It's important to remember that the benefits of wearing your support can only be felt when they are worn and sized properly. When Should I Wear a Copper Fit Support Copper Fit can be worn anytime while participating in physical activity, moderate activity, or when completely at rest. They're great for daytime and nighttime. Copper Fit supports offer the highest quality comfort fit, making them ideal for extended wear. Many people benefit from wearing Copper Fit all day long, underneath their clothes. The contoured, slim and lightweight design fits discreetly under clothes. How do I determine sizing The sleeve includes adjustable compression straps to customize your fit for form-fitting support. There is a chart that makes finding the right Copper Fit size simple. All you need to do is take an easy waist measurement and find the corresponding size on the chart. Sizing Waist S/M - 28" - 39" L/XL - 39" - 50".