The Alien 4.0 touring boot is a highly advanced ski boot specifically designed for demanding ski tours. With a shell and cuff made from carbon fiber, this boot offers an excellent combination of lightness and stability. The inner boot, Race 4.0, ensures optimal comfort and a precise fit, while the Vibram® sole provides outstanding grip on various surfaces. The boot is suitable for a wide target audience and features a flex of 110, making it ideal for both ascents and descents. With a range of motion of 9°-13°/11°-15°, the Alien 4.0 allows for natural freedom of movement, which is essential for long tours. The two buckles ensure a secure and personalized fit, while the forward lean of 25° and rearward lean of 51° guarantee optimal power transfer. This touring boot is the perfect choice for those who demand the highest standards from their equipment, both on the way up and down.

• Shell and cuff made from lightweight carbon fiber for optimal stability
• Inner boot Race 4.0 for high comfort and fit accuracy
• Vibram® sole for excellent grip
• Flex of 110 for versatile applications
• Range of motion of 9°-13°/11°-15° for natural freedom of movement.