Reebok One Trainer 1.0 Mens Fitness Trainers / Shoes - A lightweight CrossFit inspired trainer that delivers the essentials, the Reebok ONE Trainer 1.0 comes equipped with a breathable upper, durable heel strike and a soft, cushioning sockliner. Textile and synthetic upper/textile lining/synthetic sole. Low-cut design for added mobility. Removable Ortholite sockliner for cushioning that can accommodate orthotics. Carbon rubber heel strike provides durable traction. Forefront flex grooves for flexibility and a more comfortable ride.