The Ultra Gatorskin has set the bar for a perfectly-balanced blend of ride quality and long-term durability without breaking the bank … but still the roads of North America demand a model even tougher. The all NEW Gator Hardshell delivers!!! Sharing the bead-to-bead protection of DuraSkin, the Hardshell casing wraps further into the sidewall and an extra-wide Poly-X breaker covers the entyre tread strip from shoulder-to-shoulder. Added material in the tread strip not only improves mileage, but lends yet another degree of puncture resistance. More isn't always better, But in this case - MORE is what you get.