The Pegasus 41 road running shoes feature springy cushioning from paired ReactX foam with two Air Zoom units, one in the forefoot and one in the heel. An improved engineered mesh on the upper decreases weight and increases breathability. The rubber outsole provides traction and flexibility. These Nike shoes feature a plush collar, tongue and soft sockliner. The ReactX foam midsole is 13% more responsive than previous React technology. The engineered mesh upper is lighter and more breathable than the Pegasus 40. It has reflective details and a lace-up closure. The weight is approximately 297 g/10.4 oz (Men's US 10). The heel-to-toe drop:10 mm.