Thanks to its Duraskin anti-tear fabric and two Vectran anti puncture strips, the Grand Prix 4-Season holds up under extreme conditions. In the Paris- Roubaix race, the "Hell of the North", cyclists equipped with Duraskin enhanced tyres have the fewest tyre related problems during the race. Incorporating special wear resistant carbon compound, the tyre is characterized by very good mileage performance as well as excellent adhesion on wet roads and at low temperatures. A double Vectran Breaker belt under the tread raises the puncture and cut protection to the highest level available on the market. Featuring a total of five piles beneath the tread, plus a sixth Duraskin layer, it's ideal for rough sportives and generally bad road conditions.All Weather Performance TyreLightweight and tough folding Kevlar beadUltra Fine Polyamide CasingDuraSkin Mesh Layer Fabric On SidewallsDouble Vectran Anti Puncture BeltConstructed From 5 Plies Totalling 430 tpi