We are big fans of the entire Soma tire lineup. The Supple Vitesse, Cazadero, and Shikoro remain amongst our top tire sellers each year. With the expanding all road segment, cyclists are looking for more durable tires, wider than typical widths, and reasonable weights for the entire package. The Supple Vitesse is available in both the SL casing and the EX casing. The EX gives you slightly longer wear, while the SL is the super light casing which averages approximately 20 grams lighter than then comparable EX tire. The tubular casing gives you low rolling resistance even with the all-road tread pattern that hooks up great with many various surfaces.