Suede Cupsole sole Rubber toe bumper. Recessed eyelets. GEOFIT construction for anatomical fit and comfort. Heel stability clip. Rubber cupsole. The Busenitz is a soccer-inspired best-seller that proves to everyone why its a contender for one of the best skate shoes of all time. With durable uppers placed on top of a unique flexible cupsole, what else do you need?