As an all-terrain tire, the Cooper Discoverer® A/T3 Sport 2™ offers an effective balance between on-road stability and off-road capability. 3PMSF and M+S rated. All-terrain, all-season capability 3PMSF and M+S approved for harsh winter conditions and slippery surfaces Proven off-road performance Robust tread design and new compound technology provide excellent cut and chip resistance Improved sidewall protection New EPDM compound guards against the effects of ozone and UV degradation