Bikeradars verdict super light stiff secure and aero shoes best saved for racing use highs supremely light stiff and aero as well as comfortable and good lookinglows heel and ankle fit is ruthlessly tight harder to adjust than boa dial optionsbuy if you want a classy and utterly fat free racing shoe the s works sub6 is the most aerodynamically advanced lightest shoe weve ever produced the traditional lacing system cuts down weight while the warp sleeve lace covera sleeve worn d