The WeatherGrip is Firestone's Grand Touring All-Season tire developed for the drivers of coupes, family sedans, station wagons and crossovers looking to combine daily comfort, wet grip and satisfying tire life with enhanced light snow traction. WeatherGrip tires meet industry severe snow service requirements and are branded with the three-peak mountain snowflake (3PMSF) symbol, and are designed to be a one-tire solution for drivers in environments that experience all four seasons, but don't receive sufficient snowfall or icy conditions to require a dedicated winter tire.The all-season tread compound of the WeatherGrip is molded into a traction-focused, directional pattern. Firestone's Hydro-Grip Technology Package utilizes a rounded footprint that pierces through standing water, plus full-depth grooves and open shoulder slots to help resist hydroplaning. Chamfered shoulder blocks provide additional contact with the road for enhanced braking in all conditions. Snow Traction Claw technology on the center and shoulder ribs plus snow vices on the intermediate ribs help provide confident traction in light snow, while the high-density zigzag sipes and interlocking grooves of the TractionTech Package create more edges for enhanced performance in slippery conditions throughout the tire's life.Internal construction of the WeatherGrip consists of a single-ply polyester casing supporting two steel belts. A nylon reinforcement aids in handling performance and provides high-speed durability.Note: While non-winter tires featuring the three-peak mountain snowflake symbol (3PMSF) provide additional longitudinal snow traction beyond what all-season (M+S) tires not bearing the symbol can deliver, they do not match the capability of a true winter tire in all adverse weather conditions. Related Information: What is the three-peak mountain snowflake symbol (3PMSF)?