Phiten"s titanium compression knee sleeve utilizes phiten"s aqua-titanium and aqua-palladium technology. SPECIAL features include: +gradual compression - designed and developed with "higher compression fabric" above the knee and "lower compression fabric" below the knee +specially knitted structural fabric - a less stretchable, mesh fabric is used to enhance support on targeted muscles and other areas while also providing superior ventilation. +Moisture-wicking fabric lower compression above the knee (8 hpa) higher compression below the knee (10 hpa) 1 hectopascal (hpa) = 100 Pascal (PA).