- Decoupling groove - Circumferential center rib siping, rib edge notching and S-shaped sipes - Industry proven, five rib design - Tiny biting edges on the micro rib-edge siping - EPA SmartWay Verified - Maintains more consistent ground contact to fight irregular shoulder wear in long haul applications - Enhances the overall traction and directional steering grip - Provides optimized, lower rolling resistance to improve mileage and fuel efficiency - Promote even tread wear and improves traction in wet conditions - 6 year warranty