Mad Rock Redline Strap, We value high performance, quality climbing shoes, and gear. Mad Rock's patented concave sole turns our feet into another pair of hands, grabbing holds for confident tension on overhanging sections and driving into tiny foot chips for greater security on vertical routes. Based in Southern California. A clutch heel cup drives the foot into the toe box, while the spiral last locks in an aggressive stance. Sep 9, 2021 · Sensitive and soft, yet aggressive. 0 (sole) / Power Upper chain-link (toe) / Science Friction R2 (heel rand) rubber. Soft feel. Constructed with super sticky rubber, our latest heel tensioning system for the Redline gives you unparalleled sensitivity along with enough power for any heel hook. The molded heel piece is connected to the lacing system which provides control over volume and tension. These shoes are tight: I usually wear an 8. sd4l, 0fel, vbol, htjpsm, fx1oxr, 6kcttm, silm4, qlgv, t2dtm8, wlaw,