Pegasus 41 GTX

From Nike

Changing the midsole composition of a much-loved classic can be a big risk, but with the Nike Air Zoom Pegasus 41 GORE-TEX in Black/Summit White/Anthracite/Iron Grey updating to ReactX is a no brainer, already proven in other shoes within the range, it offers better performance, with a more environmentally sustainable build.The Nike Pegasus is a daily training classic, and with the new Pegasus 41GORE-TEX, Nike have kept the dual Air Zoom build, with one in the heel for your landing, and another in the forefoot for a pop of speed at toe off. Surrounded by updated ReactX, you not only get a foam that is 13% more responsive than its predecessor, but it also reduces it carbon footprint by 43% for a pair of midsoles. The upshot is a springer, more energetic ride that is helping find solutions for our future. The winter tire inspired rubber outsole is designed for wet weather grip and offers a flexible feel to your traction, for a natural gait and confident footing. A GORE-TEX upper helps keep your feet dry through the worst the weather can throw at them.

Manufacturer's description, supplied via the retailer feed.