- The AVID ENVigor ZPS radial's all-season silica tread compound is molded into an optimized contact patch featuring a five-rib directional pattern that blends performance with all-season traction. - Linked shoulder blocks and a continuous tapered center rib increase tread rigidity to improve straight-line tracking and handling. - Independent intermediate blocks, angled grooves and adaptive 3D sipes enhance wet traction, help resist hydroplaning and promote traction in light snow. - The AVID ENVigor ZPS radial's internal structure features twin steel belts reinforced by joint less nylon belt covers and belt edge strips that are spirally wound to provide long-term integrity under demanding conditions while they reduce tire weight and promote more uniform ride quality. - Two rayon cord body plies help provide predictable handling while Yokohama's ZPS sidewall reinforcement can temporarily support the vehicle's weight even after a puncture allows a complete loss of air pressure.