The Pegasus 41 road running sneakers provide responsive cushioning for everyday road running. They feature lighter-weight energy return with dual Air Zoom units and a ReactX foam midsole. The upgraded breathable engineered mesh upper decreases weight and increases breathability. The signature waffle-inspired rubber outsole offers traction and flexibility, while the plush collar tongue and sockliner ensure a secure and comfortable fit. The ReactX foam midsole is 13% more responsive than previous React technology and reduces its carbon footprint by at least 43% due to reduced manufacturing process energy compared to prior React foam. These athletic sneakers have lace up closure. The weight is approximately 297 g/10.4 oz (US 10). The heel-to-toe drop is 10 mm. MR-10 Last - The best, most consistent fit.