The Criterium is a super fast rolling tire with impressive cornering control. Countless victories have been achieved on this world-class tire making it one of the most popular models for athletes and high performance riding. This handmade tubular combines a supple, 320TPI sealed corespun cotton casing with natural rubber tread, and a seamless latex inner tube for improved comfort, confident cornering, and quick handing. The latex tube is lighter, thinner and more flexible than a butyl tube, increasing your comfort, lowering your rolling resistance, and helping to prevent flats. The tube also includes a removable core Presta valve. This tire includes PPS Ganzo, a lightweight and supple Puncture Protection System placed between the tread and casing to increase resistance to punctures.