Diadora vortex pro spd sl road shoes the vortex pro is a lightweight road shoe designed for racing and high performance the suprelltech upper is comfortable durable and light whilst the full 3k carbon fibre sole provides maximum stiffness to deliver ruthlessly efficient power transfer the speed vortex features a morpho am cage upper which is constructed from an anti stretch air mesh and highly breathable suprelltech microfibre this ensures a perfect fit and excellent foot stability for y