The s is the Women's version of the B67. The Brooks B67 saddle is probably the ultimate saddle for comfort bikes. It is one of Brooks' widest saddles, and is a great choice for riders who like to sit upright on their bikes, with handlebars a fair bit higher than the saddle and most of the rider's weight on the saddle. The B67 is plenty wide to make this position comfortable, and has a full compliment of springs underneath to take the sting out of bumps in the road. Weighs 852 grams. It is available in a black honey, or antique brown leather top, with black steel rails and chrome springs. The B67 is based on the B66, Brooks' most popular sprung saddle. The B67 has exactly the same shape and suspension as the B66, but uses just one pair of bottom rails rather than two pairs. This means the B67 works with all modern seatpost clamps, without requiring an adapter the way the B66 does.