Mastercraft Glacier Grip II Winter Radial Tire - 195/60R15 88T High Traction Tread Design The intricate tread pattern balances inter traction and a smooth, quiet ride. The deep lateral and notched circumferential grooves provide excellent evacuation of water and slush from the tread contact patch. Patented Snow Groove Design Technology Provides biting edges for excellent snow and ice traction without reducing element stiffness. The snow groove enhances the retention of snow in the outer circumferential grooves to capitalize on the higher traction characteristics of snow on snow versus snow on rubber. Mastercraft Tires are made by Cooper Tire Co.