CTM Ultra Carbon Trail is crafted to specifically meet the needs of elite trail- and ultra-distance runners. This premium running shoe combines a specially formulated UD Foamwith a tuned carbon plate for the ultimate in efficiency and energy return. It also features a VibramMegagriptraction outsole that will define a new standard in speed and versatility over the harshest of terrains. The nylon upper is highly durable while remaining lightweight and flexible, and the no-sew overlay provide critical protection without sacrificing speed and feel. This shoe is the complete package for attacking the elements. Ultra Built for speed and durability, the Ultra concept includes lightweight and fast running shoes that are capable on varying surfaces. The platform provides a perfect balance between stack height, drop and foot angle to enable runners to keep form as effortlessly as possible, which is essential when you want to run fast during a sustained period of time. CTMthe best of