La Sportiva Trango Tech Leather GORE-TEX boots are made of breathable and waterproof leather, designed for alpine hiking: particularly lightweight, comfortable and durable thanks to a nubuck body. Perfect for technical approaches and as work shoes for rescuers and mountain guides. Fitting up to the tip allows maximum volume coupling and the loops do not create stiff points at the top. The integrated tongue in the upper part in soft elastic fabric and the ergonomic shape with very compact external volumes and wrap-around fit make the product very comfortable and suitable for prolonged use. The anti-sock midsole in low-density polyurethane reduces impact with the ground while walking and maintains its characteristics over time. The 3D Flex System joint facilitates ankle mobility for precise support on uneven terrain, while the La Sportiva Cube sole made of Vibram with differentiated thickness inserts, favours support on any type of terrain. Trango Tech GORE-TEX: the best technology at the service of the hiker. Features: - Outer material: Nubuck - microfiber reinforcements - Lining: GORE-TEX Performance Comfort - Insole: PPE 4 mm thick glass fibre reinforced - Midsole: Low density polyurethane - Midsole: PU protective skin and TPU insert to attach the rear crampon - La Sportiva Cube Vibram Sole - Weight: 640 g Technology: - GORE-TEX Performance Comfort Shoes with GORE-TEX Performance Comfort technology are designed for use in moderate outdoor climates. They offer durable waterproofing and optimum breathability for the best temperature comfort. Water can't get into the shoe and sweat is easily eliminated to the exterior. The innovative design is the perfect solution for a wide range of outdoor activities and changeable weather conditions. - Vibram Grip, stability, shock absorption, durability and resistance to temperature changes are guaranteed. The double density polyurethane outsole gives the shoes their lightweight and resistance. A comfortable and lightweight sole composed of a compact polyurethane outsole for good grip on uneven ground and with a tread pattern that automatically expels mud from wet and muddy autumnal trails, and an expanded polyurethane insole which cushions impact, preventing injury to the knees, ankles and hips. It is a very comfortable and flexible sole that adapts perfectly to the way your foot moves. - Impact Brake System: Innovative impact-absorption system applied to the outsole helping traction and improving grip downhill. Conceived and developed in the R&D department of La Sportiva, in collaboration with Vibram, this sole presents real advantages to practitioners, reducing the negative impact with the ground thanks to the particular inclination of the sole blocks. - 3D FLEX SYSTEM: The leg cuff acts as an innovative and multidirectional hinge allowing the ankle to execute its natural characteristics without losing stability. Features: - Better foot control on difficult terrain - Largest superfine sole in contact with the ground - Greater stability - Larger foot pocket - Firmer heel