Continental Grand Prix 4 Season Tire Performance, no matter the season Offseason? What offseason? When base miles are essential, having the right tires below you in foul weather can make the difference between surviving or thriving during the "offseason". The Continental Grand Prix 4 Season balances all-out performance with rugged durability, meaning you won't have to sacrifice ride quality for durability and grip in sub-par road conditions. The Grand Prix 4 Season boasts a Double Vectran(TM) Breaker, a woven synthetic fiber modeled after spider silk. This premium material provides puncture resistance while remaining flexible and maintaining low rolling resistance-while a durable polyamide Duraskin carcass protects the sidewall and tread from cuts and abrasions. Ride confidently in any weather with the Grand Prix 4 Season. Features All-season tire balancing puncture resistance, long tread life, and on-road performance Double Vectran(TM) Breakeris a woven synthetic fiber providing puncture protection at the tread of the tire Duraskin casing is a polyamide material that offers bead-to-bead durability SPECIFICATIONSSize700c Conditions Pavement Bead Folding TPI3-layers of 110TPISidewall Protection Bead-to-bead Duraskin Puncture Protection Double Vectran(TM) Breaker Type Clincher Tubeless Compatible No Intended Use Road, Training, Commuter Approximate Weight235g (23mm), 230g (25mm), 295g (28mm), 340g (32mm) | Continental | Grand Prix 4 Season Tire | Black | 700 X 28C Folding