The Brooks B67 S Saddle is the modern, Women's specific, version of the B66 model, first featured in the 1927 catalog. Classically sprung for supreme comfort, the B67 S features single rails for attachment to modern micro-adjust seat pillars. Features: Classic: lifetime comfort, shapes to your body, cool in hot weather Aged: comfort from day 1, quickly shapes to your contours, laced to retain the shape Specifications: Width: 210mm Length: 260mm Rail Size: 7 x 7mm (Standard) Rail Material: Steel Cover Material: Leather Gender: Women's Discipline: Classic, Road Color: Black (w/ Black Rails & Chrome Springs) Weight: 850g