Mad Rock Remora Climbing Shoe Synthetic Much like the fish this shoe was named after, the Remora suctions not only to your foot, but on the rock as well. With tension applied in all the right places, the sock like fit in this slipper allows one to do it all. The Remora has been built with a traditional look, yet enhanced with features such as the power upper and SynFlex materials to give a consistent and precise fit.