The HYPER SPEED™ 5 shoe is designed for quicker training and racing. This version includes a lightweight upper material that's formed with a racing-specific fit. The shoe's repeat mesh material is lightweight and durable and is designed to help provide a race-ready fit for racing on and off roads. For the eyelet stay, we fine-tuned its construction to improve the overall fit while creating better midfoot lockdown and fit. An improved sockliner is added for underfoot cushioning. Repeat mesh upper – Lightweight and durable. FLYTEFOAM™ cushioning – Lightweight midsole foam that delivers a comfortable cushioning experience. AHAR® LO outsole rubber – Lower-density rubber placed in key areas of the outsole for reliable grip and traction without sacrificing durability. Shoe Category: Neutral Surface: Road Running Drop: 7mm Weight: 180 g | 6.34 oz