The shimano xc70 spd mtb shoe is a elite competition off road racing shoe built with a carbon fibre sole plate custom fit technology and dynalast xc sole design the custom fit material has been added in to the heel which can be conformed to fit your foot contours resulting in a precision fit and added support also the custom fit insoles have an anti bacterium treatment to keep your feet feeling dry and fresh whilst having an adjustable arch support which can be moulded to your foot giving y