Terra Powerstrap X4Description Powerstrap X4 is a versatile and ubiquitous gravel focused shoe, designed for drop bar riders whose adventures and aspirations take them beyond the traditional paved roads. A gravel cycling shoe with our Powerstrap Velcro closure system for an enveloping fit and an X4 outsole providing targeted stiffness and rubber tread for mixed surfaces. Features Powerstrap While most traditional Velcro closures just pull together two sides of the