Abstract: A roller skate of the type known as "single tracked" that is having only a single row of rollers one behind the other, is provided with fastenings for the foot of a wearer including an ankle bracing support extending above an ankle strap which holds the foot of a wearer in contact with a heel grip at the rear of a foot plate or base of the skate. The ankle bracing support includes a C-shape padded cradle for engaging part way around the leg of a wearer above the ankle and has a strap by which it can be securely fastened to the leg. The cradle itself is secured to the base or the heel grip in such a way that it can pivot about a transverse axis parallel to the axes of the rollers to permit free movement of the foot in the required direction but resists transverse or twisting movements to support the ankle against twisting.