Chiruca Urales GORE-TEX boots are made of optimal materials in durability, climatic comfort and weight, such as Vibram soles designed for the toughest conditions on any type of surface, or the GORE-TEX membrane. Characteristics: - Scotchgard hydrofuged nubuck leather - Hydrofuged nappa - Textile interior - GORE-TEX Performance Comfort Lining - Vibram Schwarzwald rubber sole - Weight: 680 g Technologies: GORE-TEX This membrane achieves that the feet do not get wet with the outside water and that at the same time they can perspire. The result is waterproof boots from outside to inside and permeable from the inside out. - Durable waterproofing: the GORE-TEX membrane is formed by a microporous structure that contains more than 1,400 million microscopic pores per cm2. These pores are approximately 20,000 times smaller than a drop of water, making it impossible for water to penetrate the membrane.