NWT, never worn, for narrow to avg width feet. Size 10 (perfect for those that wear 9/9.5). Weight 7.3 oz (Size 8) Designed for dedicated runners, this lightweight daily trainer enables smooth and efficient running with enhanced stability. The heel features a 40 mm stack height, Smooth Speed Assist design, and MIZUNO ENERZY NXT, which provides exceptional cushioning and energy return while maintaining a strong ground feel. The shoe also has a newly redesigned upper combining breathable mesh and stretchy knit. It is a reliable, high-performance option for versatile uses from jogging to faster-paced runs.