We spent some time thinking how to describe our new s works 6 xc mountain bike shoes and really their selling point is pretty easytheyre the lightest most connected xc race shoes in the world theyre not just light although they are only 270 grams per shoe but its more about the blend of low weight and incredible performance they feature our stiffest and lightest carbon fiber outsole for pedaling efficiency and feedback while they borrow some unparalleled traits from the road version