The Rocket X 3 is an accommodating carbon race shoe with a smooth rocker transition, reliable underfoot consistency, and soft but controlled landings that let the runner focus on the race rather than managing the shoe — good for road ultras.
Best for: Road ultra runners who want the efficiency of a carbon shoe but a more reliable, consistent platform than aggressive race shoes.
+7 earlier reviews from The Run Testers
Best for: Runners unsure they'll hold perfect form late in a long race — also good for training miles
Best for: Newcomers to carbon shoes; runners wanting stability in a race shoe
A versatile, lightweight carbon racer that trades the aggressive punch of top-tier super shoes for a smoother, more stable, and more comfortable ride better suited to marathon distance and fast training than all-out PB chasing.
Best for: Runners wanting a more stable, comfortable carbon racer for marathons or a fast plated trainer that can step up to race day
A more comfortable, supportive and stable carbon racer than the Cielo X1 2.0 that offers strong race day potential plus broader training versatility, though not as flat-out fast.
Best for: Runners wanting a more approachable, stable and versatile carbon racer for races of any distance including marathon, and fast training.
A stable, accessible carbon racer — not the punchiest or fastest carbon shoe available, but among the best carbon race shoes for beginners and those wanting a hedge-your-bets racer with a bit more comfort and control.
Best for: Racing from short distances to the marathon, especially for runners new to carbon shoes who want stability; also viable for fast training if budget allows
A more stable, forgiving, and versatile carbon racer than the Cielo X1 3.0 — still fast and bouncy but controlled, making it a strong marathon option and suitable for a wider range of runners.
Best for: Marathon racers wanting reliability and comfort in the back half of a race, and runners who want a versatile carbon racer that also handles training paces.