These shoes are listed in men's US sizing. Probably the FASTEST trail shoe in the world!Lightspeed is an ultralight racing shoe, designed together with Elite Trail Runner, Juuso Simpanen to create the fastest shoe on the planet. We recommend ordering your actual shoe size (not your normal VJ half size up!)The Lightspeed features VJ's new SuperFOAMance midsole which offers extreme cushion and energy return with every step. This new foam is a modern, supercritical foam that is lighter, more responsive, more comfortable and more propulsive than a traditional EVA foam. Compared to other foams, SuperFOAMance is more durable, does not rip as easily, and bonds to the VJ grippy outsole much better.The Lightspeed propulsion plate helps increase the rebound, adding to your running economy. This can help you run faster, or longer, or both! The plate is a special polymer made of renewable castor oil in a Y shape to provide stiffness and rebound and also increase the lateral stability.The upper is a light, breathable, durable one-piece that together with the foot-shaped last will give maximum comfort and performance!The Lightspeed is designed to be used without a sock liner insert - it comes ready to rock and roll at its lightest weight possible for maximum speed. Don't worry, if you need or want the insert, we put them in the box. It's your choice! Get ready to sprint on the trails with ease and comfort!
