adidas Original ZX Flux Mens Trainers / Shoes - A sleek re-imagining of an iconic '80s runner, these men's shoes keep the ZX legacy alive. They feature a mesh sock upper, TPU 3-Stripes and heel cage, and TORSION SYSTEM midfoot support.One-piece neoprene upper. Step-in neoprene sock construction. TORSION SYSTEM for midfoot integrity. Welded TPU 3-Stripes. Moulded TPU heel cage. High-tech performance adizero Adios tooling.