Polyester/Fiberglass belted, 21/32 tread depth. Up to 20'' of contact patch from sidebiter to sidebiter. Full 6-ply lower sidewall with cut resistant compound. Directional, long-wearing & self-cleaning tread design. Circumferential grooves allow flexing for better rock crawling. New tread pattern with 23 degree lugs and extra large sidebiters for extra traction and sidewall protection.