Take a Grand Prix 3000, add extra puncture protection and keep it lightweight, the Grand Prix 4 Season is the result. Thanks to Continental's DuraSkin fabric, which reinforces the sidewall without significantly adding weight to the tire. The Grand Prix 4 Season has become the perfect all weather training or racing tire. Extra puncture protection for harsh weather conditions. DuraSkin cut resistant layer from bead to bead, plus 2 extra polyamide breakers.Black Max Grip Silica compound optimized for wet weather adhesion, low temperatures and extended tread life.