Sound - Navy Blue Suede - MTBThe 'Sound' was designed and developed to withstand the abuse of riding flat pedal BMX, MTB, and skating. It's not a wacky space boot for bikes. It's built with style but packed with function. The MTB build features a stiffer toe and heel cup that offers more protection than the standard BMX flat pedal shoe. Hidden in the crank arm side and the outside is a layer of our custom impact foam, made with recycled truck tires, to protect against impacts.