Racing Shoes should ‘fit like a glove.’ They should not be intrusive to your driving. Instead they should offer you unobtrusive comfort, support with great flat pedal grip & control. The enhanced heel design stabilizes the rear foot for a secured driving position. Racing shoes are not designed to ‘give.’ If you have a wider foot we recommend you go up a size. If you are unsure of you EU sizing we recommend you place your foot on a flat surface, mark the outline of the heel and toe and measure (in centimeters) between the two. The result is your EU sizing.