Reserved for race day. Top-shelf performance built with the same engine as the Endorphin Pro 2. Fueled by SPEEDROLL Technology with a carbon fiber plate and PWRRUN PB superfoam for incredible kick. Tailored for performance. Taking cues from the ultralight, minimalist world of track spikes, the upper is a luxurious, road-ready edit with premium suede, enhanced breathability and a second-skin fit for max efficiency. Limitless potential. Limited quantities. Like a concept car, a purposefully small production run means this one’s here for a fast time. Not a long time. Meant to inspire future innovation and retire after it sells out.