Leather upper with perf details at forefoot Lace closure for a snug fit Cushioned midsole for comfort Rubber outsole for grip PUMA Formstrip at medial and lateral sides The Puma GV Special was named after legendary Argentine tennis player Guillermo Vilas (GV). G. Vilas was the first South American male player to win a Grand Slam event, and was also constantly recognized for his unique sense of style. The Puma GV Special features an ultra thick outsole, a breathable plush leather upper, and ventilated side panels.