With a speedy Zoom Air engine on top of softer, more responsive ReactX foam, the Pegasus 41 is unlike any other made before. A springy ride for any run, better for all runners. • Nike ReactX foam is engineered to reduce its carbon footprint by at least 43% in a pair of midsoles. • Nike ReactX technology is paired with 2 Zoom Air units (1 in the forefoot, 1 in the heel) to give you a bouncy, energized feel at toe-off. • The upper is an engineered mesh that’s even lighter and more breathable than the Pegasus 40. • The inner contours of the shoe are comfortable, breathable and forgiving in the toes, arch and heel The Pegasus 41 will hug your foot with an implemented midfoot band for a secure but forgiving fit. Comfort and Performance you'll love! Brand new, in box, never worn.