Like a snake, you slither by competition on the trails. You flex easily to accommodate the ever changing positions necessary to move your bike any which way you desire. Fi'zi:k developed the Tundra M3 Saddle to work with your body so that you'll have optimal support whenever you need it. Designed primarily for cross country riders, the Tundra M3 features a long 290mm and narrow 125mm shape which allows you to position yourself to take on whatever the terrain throws at you. According to Fi'zi:k's Spine Concept Fit system, as a snake, you are able to minimize pressure to soft tissue areas by keeping your weight on your sit bones. Because of your flexibility, the Tundra does not feature a cut out channel. The shell is fiberglass thermoplastic composite sheets which sandwich a layer of foam. This provides stiffness necessary to support sit bones while also allowing flex at the edges to reduce chafing. Fi'zik's Wingflex technology, which allows the sides of the saddle to move with your legs while keeping the top rigid, means that you'll transfer all your power to the pedals not to the saddle. These technologies combine for optimized stiffness to weight construction. The entire length of the Tundra is covered in microtex fabric. Fi'zi:k constructed the Tundra M3 saddle using K:ium rails. The K:ium rails offer a better ride than titanium rails. They're 8% lighter than titanium rails, have greater strength to weight ratio, and absorb more trail chatter. The vibration dampening is thanks to silicon being added to the alloy. There is also some chromium content. It makes the rails nice and shiny and increases corrosion resistance, which helps with overall durability. Available in one size, the Tundra M3 weighs 190grams. It is available in Blackwhiteorange.