Adizero Adios Pro 4 vs Cielo X1 3

The Adizero Adios Pro 4 is adidas at its most focused: a carbon marathon racer built to chase a personal best and little else. At 188g it is light for a shoe with this much stack, and the EnergyRods give it a firm, forward-tipping snap that wants you up on your toes and moving. Pair that with a high, responsive midsole and you get a ride that protects your legs deep into a race while still feeling fast. It is happiest on smooth tarmac at marathon and half pace, where a quick, efficient cadence unlocks the best of it. This is not a do-everything trainer, and it does not pretend to be. If you want one shoe for easy miles and race day, look elsewhere. But if you are after a sharp, single-minded racer for the days that count, the Adios Pro 4 is one of the best around.

If you want a lighter, softer ride for the same job, the Nike Vaporfly 4 is the obvious rival.

The Hoka Cielo X1 3 is a max-stack carbon racing shoe built for runners who want a big, protective ride without giving up pop at pace. It sits right at the top of the stack rules with a 44mm heel, a carbon plate and a PEBA-based super foam, so it is squarely a marathon and half-marathon shoe rather than a short, snappy 5k racer. The story of this third version is refinement. Earlier Cielo X1 models were brilliant fun but heavy and a handful at slow speeds. This one is billed as the lightest and most stable yet, and that matters because it makes the big platform far easier to actually race in. If you have looked at the Nike Alphafly 3 and wanted something with a broader, more planted feel underfoot, this is the Hoka answer. It is premium at 250 pounds, but for long-distance race day it delivers a genuinely propulsive, cushioned ride.