Running Shoes
Nike Streak Fly 2: First Thoughts on an Ultra-Light Race Shoe
The Nike Streak Fly 2 adds a carbon Flyplate and drops to a claimed 4 oz, positioning itself as a mile to 10K racing shoe built on track spike DNA.
Introduction
The Nike Streak Fly 2 picks up where the original Streakfly left off: a companion to the Vaporfly, but built for shorter, faster efforts. The first version skipped a carbon plate in favor of a shank and leaned on ZoomX foam, and it earned a loyal following among runners who wanted a lightweight fast shoe without stepping all the way up to the Vaporfly.
The Streak Fly 2 changes the formula in one big way. It now carries the same Flyplate found in the Vaporfly 3, and it sits on a ZoomX lower stack measuring 27/23 with a 4mm drop. The result is a shoe that reads more like a road-going track spike than a daily trainer, and it is priced at $180, $10 more than the previous version.
Who This Shoe Is For
This is a shoe for the mile, the 5K, and arguably the 10K. It keeps you up on your toes with a lower drop and a rigid, spike-like stance, which makes it less of a do-everything racer and more of a specialist for short, hard efforts.

If you have raced in the Vaporfly and found it comfortable at any distance, this fills a different role. Where the Vaporfly covers longer race days, the Streak Fly 2 is the lightweight companion for short-distance speed.
Main Strengths
The weight is the headline. On a men’s 7, the shoe comes in at 4 oz on the dot, compared with 5.4 oz for the Vaporfly. That difference is enormous in practice: the shoe genuinely disappears on the foot, even if it feels a little odd at slow warm-up paces.

The fit is the other pleasant surprise. The upper looks similar to the Vaporfly’s, but on the foot it felt great, sock-like, without the heel lift that has plagued some runners in the Vaporfly.

The combination of the Flyplate, ZoomX foam, and a more aggressive toe outsole with waffle-style grip delivers a fast, propulsive turnover. Test runs at faster-than-5K effort produced paces the runner had not seen in a very long time, with every step digging in and powering through.
Things to Consider Before Buying
There are two honest caveats. First, at slow paces, especially warm-up jogging, the shoe’s extreme lightness and rigidity feel a bit strange. This is a race tool, not a trainer.
Second, colorways are hit and miss. The review pair arrived in a bright cherry and lime option, while other colorways in the line are generally considered much stronger. Bright colors do have a way of standing out on a track, sometimes in a good way.
Buying Advice
At $180, the Streak Fly 2 costs $10 more than its predecessor, but this version adds a carbon Flyplate the original never had. If you race short distances and want the lightest possible platform with real propulsion, that upgrade looks worth the difference.

Plan on logging a few more workouts before a full verdict, but early impressions point to a nicely executed update that should pair well with a Vaporfly or Alphafly rotation rather than replace it.
Conclusion
The Nike Streak Fly 2 turns a beloved lightweight shoe into something faster: carbon plate, ZoomX foam, 27/23 stack, 4mm drop, and a claimed 4 oz weight. It is clearly built for the mile through 10K, and early testing suggests it does exactly that. If short-distance racing is your focus, this belongs on your shortlist.
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