Shimano r171 road spd sl shoesthe shimano r171 road shoe has original style and design which optimizes comfort and delivers pure pedalling performance featuressupple stretch resistant synthetic leathersopen mesh for optimal breathability innovative surround upper pattern provides perfect balance of holding power and absolute all day comfortdual density cup insole for heel bone stabilitylightweight carbon fibre composite soleadaptable mechanical closure system adjusts to various instep height