sentences:  The sole was designed to provide excellent traction on the widest range of surfaces, have a high degree of abrasion resistance, and was made using the latest vulcanized rubber of the time.In 1954, the first successful ascent to the summit of K2 was made by an Italian expedition, wearing Vibram rubber on their soles.Today, Vibram soles are manufactured in Brazil, China, Italy, the Czech Republic and the United States, and are used by more than 1,000 footwear manufacturers in their footwear products.