The Footprint Skeleton White Kingfoam Elite 5mm Orthotic Insoles are perfect for those with flat to mid arch feet. The insoles have extreme energy absorption, making skating a little easier on your feet and body as a whole. The ARTi-LAGE Artificial Cartilage Foam absorbs up to 90% of impact energy. Once you wear these in, you'll never want to go back to standard insoles.