There’s no doubt about it, these shoes are fast. Nike Air Zoom Alphafly Next% review: Performance I’ve tested these in a number of different weather conditions on the road, and never had an issue with slipping, even when the pavement was wet. Nike say they created the outsole using data from hundreds of runners, placing traction where it’s needed most.

(Due to the stack height, I wouldn’t recommend wearing the Alphafly on trails, instead, check out our best trail running shoe guide for that.) The rubber outsole is thicker under the forefoot, which is where most runners need it, according to Nike. One look at the outsole tells you this is definitely a road racing shoe, and on roads, the grip is superb. That said, like all running shoes, it’s worth sizing up a half, or a full size from your everyday running shoes. The Alphafly Next% fit true to size - I wear a UK5 in the Nike Pegasus 38 and chose the same size in the Alphafly. No shoe I’ve ever run in compares to the sensation of the Alphafly Next%, which literally makes you feel like you’re flying as it propels you forward on each step. The result underfoot is like running on a trampoline, and definitely takes some time to get used to. The Alphafly Next% gives you maximum cushioning, with a thick wedge of Nike’s ZoomX foam, two Zoom Air units in the forefoot, and a carbon fiber plate. While Nike said they’re durable enough to do a few hundred miles, the company also released training companions, like the Nike Air Zoom Tempo Next%, to take the load of training miles. In fact, if you’re spending $275 on these shoes, you’ll probably want to save them for your races, and definitely won’t be plodding around the park in them. These shoes are designed to go fast on race day. Nike Air Zoom Alphafly Next% review: Design and fit

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