Extra deep tread depth provides long tread life in extreme conditions Smooth tread design provides the maximum rock type damage resistance CRB – Features Aralon Cut Resistant Breaker construction, which providesincreased strength and durability without sacrificing heat resistance CAB – Features Cushion Armor Breaker steel belted construction, which givesincreased cut resistance Belted 7×7 – Features 7×7 steel belted construction, which provides increasedcut resistance and extended wear