Alphafly 3 vs Endorphin Elite 2

Most carbon marathon shoes want strong, well-trained legs before they give much back. The Alphafly 3 asks for less than its looks suggest, and that came through in almost every review we read. Nike made the midsole one continuous piece for this version (the Alphafly 2 had a big gap under the midfoot) and took a lot of weight out. Reviewers describe a smoother roll from landing to toe-off, and it no longer feels clumsy on a warm-up jog. Ben Parkes, who has raced marathons in it, reckons it isn't so aggressive that only elites benefit, and thinks plenty of intermediate marathoners will get a lot from it.

It's still a specialist carbon racing shoe, and at £285 RRP it sits near the top of the market. It's also loud on the road, and some feet find it snug. For 5K and 10K races the lighter, snappier Vaporfly 3 makes more sense. For the half and the full marathon, we'd still put the Alphafly 3 near the front of the queue.

Saucony swapped the firm foam of the first Elite for something far softer, and the Endorphin Elite 2 ended up as one of the bounciest carbon racing shoes around. Lab testing at RunRepeat rated its midsole the softest they had measured, and reviewers mostly describe a ride that squashes at easy pace and pushes back once you speed up. That makes it a marathon shoe before anything else, and it's also why it wobbles. The Run Testers found it unsettled on fast corners and slippy in the wet, and pointed to the Metaspeed Sky Paris as the steadier pick. The toe box is narrow as well. With steady mechanics and slim feet, you get a very lively half or full marathon shoe. If your form tends to fade late in a race, the Endorphin Pro 4 is calmer and cheaper, and Saucony has since followed it with the Endorphin Elite 3.