my sit bones suggest a 155 saddle size but i have a liberator race i have gotten that is a dream and is 143 size. also the womens saddles i have tried many of and they were okay, but not quite right... then i sat of a boy cycling buddy's mountain bike and OMG! what a difference-- so got the same boys saddle for my road bike-- got along with it really well but decided to go for something for long road rides instead, ie. not as hard, even though it was fine-- and bought a mens terry liberator ti saddle - perfection in a saddle it is for me!!!!! all the womens ones had really wide noses and were just 'wrong' somehow-- the mens saddles are way better for me--- so they might be worth a try for some other women too-- all our anatomy is different!! :-)