Puncture protection and mileage are the strengths of Hardshell-ProTection. A wider PolyX Breaker, the specialist against punctures under the tread center and shoulders provides for great reliability. The three-ply – each layer with 60 TPI – carcass covers the entire tire and makes it a real bastion against urban detritus. The outer sidewalls of the tire are reinforced with DuraSkin fabric providing even more reliability due to the casing being so well protected. Hardshell tires are the puncture-resistant flagship amongst racing tires – produced exclusively in Germany. Features: High-mileage, carbon-black tread compound Duraskin sidewall protection, in addition to Hardshell features, provides a durable, high-performance tire suited to athletic urban riding styles Hardshell protection consists of casing-ply overlap covering more of the sidewall than normal, plus an extra-wide PolyX breaker Specs: Size: 700x32c Color: Black Flat Protection: Tread and Sidewall ISO Width (mm): 32mm PSI: 102 Tire Bead: Folding Tire Type: Clincher Weight: 420 grams (per tire)