Nike has the industry’s broadest line of track & field shoes, offering something for everyone, from beginners to Olympians. The Ja Fly 2 is one of their elite sprint spikes designed for sprinters from the finesse end rather than the power end of the spectrum.
The upper is closed minimesh with welded overlays. The lacing is asymmetrical, angled laterally, shoring up the foot medially, to add support for sprinting, with welded Flywire through the saddle. The midsole is a very thin layer of molded EVA foam, concentrated in the heel and narrowing through the arch. The outersole is a full-length Pebax spike plate that’s most rigid under the toes, positioning the foot forward for sprinting efficiency. The eight-spike plate ensures that traction is maximized. While light weight is a priority, the sole is substantial where it needs to be.
Sizes: Unisex 4–13,14,15
Weight: 6.8 oz. (w/spikes, men’s 11)
Spikes: 8, replaceable
Upper: mesh, welded synthetic overlays
Innersole: molded EVA
Midsole: full-length Phylon (EVA)
Outersole: Pebax spike plate, toughened EVA
Recommended for: 50–400 meters on synthetic surfaces