Nike Pro Patella BandSupporting and protecting your knee during intense training sessions, the Nike Pro Patella Band delivers light compression with foam padding where you need it most. The band is made from Nike’s Dri-Fit sweat-wicking technology which provides excellent moisture management.SizingUse the circumference of the area below your knee to determine the correct size:S/M: 11.5-17’’/ 30-43cmL/XL: 17-21.5’’/ 43-55cmFeaturesLatex freeSupportive elastic strapLight compressionFoam paddingPerforations for durabilityDri-Fit sweat-wicking technologyBuy Nike Training Aids from Chain Reaction Cycles, the World's Largest Online Bike Store.