| The Winter Sottozero tread compound utilizes cap and base technology that combines two different compounds. The upper strata (cap) that comes into contact with the road surface uses Pirelli's latest generation silanes to bind the silica and polymer to provide greater stability during hard driving in both wet and dry conditions. The sub-strata in contact with the casing (base) uses nano-composites (aluminum silicates) dispersed throughout the polymer to provide the stiffness that enhances stability and driving precision. The tread compound is molded into an asymmetric tread pattern divided into distinct inner and outer elements to blend traction in light snow and on ice with drivability on dry and wet roads. On the inside, they utilize Pirelli's ultra high performance tire structures to offer levels of performance not normally associated with winter tires. | 
