The Ultra 100 GTX W is a waterproof Trail Running shoe with maximum cushioning. It was developed for all athletes striving to conquer ultra long distances even if it's wet outside. The maximum shoe volume guarantees a comfortable fit even after hours of running on challenging trails. Needed cushioning was a clear focus during the development of the Ultra 100 midsole. Combined with a POMOCA outsole, runners get excellent cushioning and superb grip on all surfaces and conditions. With the Invisible Lacing system, a stretch lace cover adds increased protection against dirt and pebbles getting into shoes on the trail. A GORE-TEX membrane ensures your feet stay dry during long days in the mountains with changing and challenging conditions.