Rubber sole Whoever you are, wherever you go, make sure you move freely Lightweight Performance Impact-Aborbing Soles Innovative Design Created for minimalists and those who love to feel every step they take, CVT LB features an innovative outsole with grippy lugs that improve traction, yet also provide continual sensory stimulation to the foot due to the innate thinness of the sole. This is the power of combining Megagrip with Litebase to make such an advanced outsole.