For riders who simply demand the most protective fast rolling tyre around building on the supremely successful ultra gatorskin the gatorhardshell gets added extras in every department bead to bead duraskin protection hardshellcasing wrapping further into the sidewall extra wide poly x breaker belt covers the entire tread strip from shoulder to shoulder added material in the tread improves mileage and further increases puncture resistance supple handling and low rolling resistance handmade in