Perfect for XC racers, all-mountain riders, and tested by SIDI athletes Julien Absalon and Nino Schurter, the SIDI Drako SRS Carbon MTB Shoes have a replaceable tread system to improve traction and longevity, plus they weigh 100g less per pair compared to the previous Dragon Carbon SRS sole without sacrificing power or durability. Lightweight medium-modulus carbon sole absorbs shock over rough terrain while the innovative Replaceable MTB Plate prevents sole damage from pedal contact. Breathable Microfiber TechPro mesh upper regulates temperature and repels dirt and water. Integrated Rubber Toe Guard deflects impacts from stones or debris on the trail. SIDI Heel Cup positions the foot inside the shoe to reduce slippage and enhance pedaling efficiency. Adjustable Heel Retention Device gives a perfect fit from the sole up, heel to toe, for all-day comfort. Soft Instep 3 Closure System with padded tongue eliminates hotspots. Tecno 3 Push retention system has a non-binding fit that conforms to the upper foot for even pressure distribution. Micro-ratcheting buckles adjust with a single click in either direction for simple fine-tuning on the fly.