The All Season is Firestone's Passenger All-Season tire developed for the drivers of coupes, sedans, family minivans and crossover vehicles looking for a tire that combines year-round capability and ride comfort with long tread life.The All Season molds a silica-enhanced tread compound into a symmetric design for easy rotation in order to promote even wear. Four circumferential grooves help guide water through the tire's footprint for improved wet grip, while deep sipes provide the biting edges needed for traction in light snow.The tire's internal structure includes a one- or two- ply (depending on size) polyester body casing beneath two wide steel belts with spirally wrapped nylon reinforcement to deliver durability, ride quality and stability.