Streakfly 2 vs Vaporfly 4

The Streakfly 2 is Nike's short-distance specialist: a featherweight carbon racing shoe built to fly over 5K and 10K, not to baby your legs through a marathon. At 165g it is one of the lightest plated road racers you can buy, and that shows the moment you lift the pace. This is the rare super-shoe that stays nimble and low to the ground, so it turns and accelerates like a racing flat while still giving you the carbon snap you expect from a modern running shoe. Compared with the Vaporfly 4, which is built for the full and half, the Streakfly trades stack and long-haul cushioning for speed, agility and a more connected feel for the road. We rate it highly for parkrun PBs, track 5Ks and sharp interval sessions. At 170 pounds RRP it is a focused tool, and we would buy it knowing exactly what it is for.

The Vaporfly 4 is Nike's pure road racer, the carbon racing shoe that started the super-shoe era and still sits near the top of it. This is a marathon shoe built for one job: returning as much energy as possible when you run fast. At a claimed 190g with a carbon plate and an 6mm drop, it is light, snappy and unmistakably race-focused. It is not a do-everything trainer and it does not pretend to be. Park it for easy days and bring it out when the pace matters. We rate it as one of the most accessible elite racers you can buy, because it suits a wider range of paces than the bigger Alphafly 3, which rewards a stronger, faster runner. If you want a proven 5k-to-marathon racing shoe with real pop and a forgiving ride, the Vaporfly 4 is an easy shortlist pick. At £260 RRP it is a serious investment, so it earns its place as a race-day specialist rather than a daily option.