The Matthew M. Williams x Nike Free Trainer 3 SP “Ivory” is an avant-garde sneaker designed by the founder and creative director of the high-fashion label Alyx. Williams brings his signature futuristic utilitarian aesthetic to the eye-catching design, featuring the Nike Free Trainer 3 at its core, layered with a detachable Vibram outsole that is strapped onto the upper. The shoe is meant to embody the “multi-functionality of our modern urban existence,” according to Williams. The detachable sole allows the shoe to be worn as a minimal trainer or a heavy-duty boot. This men’s Free Train 3 iteration features an Ivory colorway with black accents. A medial zipper enclosure supplies easier access.