R.A.D. UFO : r/RunningShoeGeeks。Only worn for 28 miles. The R.A.D® UFO is a road-running Super Trainer - designed to build speed across distance. At the UFO’s core is SUPEFOAM™ - a dual-layer PEBA blend. The soft layer improves running economy and reduces fatigue by cushioning each step, while the firm layer delivers powerful energy return with every stride - a catch and release system. The flowing rocker and sculpted heel bevel have been designed for smooth transitions and dynamic toe-offs, keeping the runner in perpetual motion - on loop. Engineered for comfort, and speed across distance - the UFO is a precision instrument for every phase of a runner’s training, ideal for long runs, progression sessions, and threshold work. Designed for road-running, not the trail.