DuFFS - Kingpin (Black/White) - Men's: Suede, tumbled action leather and mesh combo upper. "Speedy D" branding. Metal eyelets. RRD breathable mesh. 30MM thick foam tongue. Tongue stabilizing straps. Compression molded PU insole. Bone Saver Technology(tm). EVA sheet midsole. DuFFS half cup outsole. Wrapped toe and heel. Stitched sidewall. Classic zig-zag tread. 400NBS rubber.