Redefining the perfect all weather performance tyre the grand prix 4 season delivers reliable security and sure footed grip whatever the conditionsultra fine polyamide casing for supple all day performancemaxgrip silica tread compound is specifically optimised for wet weather grip even in low temperaturesduraskin polyamide mesh layer fabric on sidewalls protects the casing against cuts punctures and abrasion whilst only adding 10 grams per tyredouble vectran breaker belt under the tread offers u