NIKE Black Dual Fusion TR III Running Shoes - Men sneakers sz 7 Featuring a breathable mesh upper and vibrant accents, these Nike Dual Fusion TR III High-Performance running shoes will be your first pick on race day. In dark gray/volt. Shoe Technologies: Lockdown lacing system gives you a secure fit. Dual-density midsole offers lightweight cushioning. Waffle grooves ensure reliable traction. Shoe Construction: Mesh/synthetic upper Phylon midsole Rubber outsole Shoe Details: Lace-up closure Padded footbed