- Three-ply casing Construction handles heavy loads At highway speeds and Delivers Outstanding durability. - Deeper groove depth contributes to longer Wear, and enhanced wet and All-Season traction. - Wider, Solid center Rib adds durability and greater directional stability At highway speeds. - Proprietary tread compound Increases treadwear, Reduces tire squirm and heat build-up without sacrificing wet and dry traction.