Soft copper support with real copper threads woven into them to help improve circulation, keep joints warm & soothe away pain & stiffness. Extremely supportive elasticated material fits snugly like a bandage. With 19% copper content the help increase blood flow directly around the whole of the painful joint. Can be washed as often as needed. Once you've worn a Copper Knee Support, you'll never want to be without one. Tailor made for painful joints Soothe away pain & stiffness Woven copper content 19% Easy-care washable material Size Guide: Large/XLWidths (the support tapers to fit the shape of your leg) Top = 13.5cm (circumference = 27cm) Middle = 12.5cm (circumference = 25cm) Bottom = 11.5cm (circumference = 23cm) Length = 28cm Small/ Medium Widths (the support tapers to fit the shape of your leg) Top = 12.5cm (circumference = 25cm) Middle = 12cm (circumference = 24cm) Bottom = 11cm (circumference = 22cm) Length = 26cm