The bike seat cover's shorn sheepskin absorbs perspiration helping you keep cool when warm and provides warmth in cold weather. The dense wool fibers cushion you giving you a more comfortable ride. Stretchable elastic base holds the cover in place allowing easy fitting and removal. Available in one size (Tourer) only. 10 speed is no longer available: Maximum seat Length and Width: Tourer bicycle: 26 x 24cm (10.25 x 9.5in.) Tourer bike size may be suitable for some exercise bike seats, check measurements above. Color: Grey