The adidas Adizero Adios Boost Racing Trainer to give it it’s full and proper name is marketed very much as a distance running shoe, one that won’t just get through those longer distances, but get you there faster too…
As is easy to gather from the name the shoe uses the Boost tech that was launched with such initial fanfare (bordering on rather loud hysteria) and can now be found in two-dozen or so of adidas’s top-end shoes.
Basically the material, which replaces traditional EVA in the midsole, is composed of fused-together thermoplastic beads designed to last longer, be less sensitive to temperature fluctuation and deliver better ‘energy return’ – i.e. more bounce for your buck with each stride. Whilst both longevity and temperature sensitivity are easily proven (as they have been my adidas in the lab), the idea that energy return can translate directly to an increase in performance is tougher to quantify.
On the road there is a slight spring to the step but nothing like the quantum leap (possibly only perceived) that something like the Hoka One One Rapa Nui or On Cloudrunner delivers out of the box. Perhaps our expectations had been set a little too high by all those press releases, because on test the Adizero Adios Boost feels a little (whisper it) ordinary…
adidas Adizero Adios BoostIt’s a good enough running shoe of course; the fit feels a little narrow – although that’s down to personal taste and anatomy – and the heel cuff slightly inflexible (noticeable on downhill runs), but otherwise a fairly standard road affair, with reasonable responsiveness. As is standard from adidas the Adizero Adios Boost uses the ‘Torsion System’ to bridge the forefoot and heel, which helps to stabilise the arch whilst allowing independent ‘twist’ between the front and the back of the shoe.
Despite the fact that the Boost element, which is visible along both sides, looks unnervingly like polystyrene packing material it has, so far, stood up to plenty of long, hard runs without any of the signs of compression or distortion we had expected see. The grips – particularly the seemingly randomly placed grip dots on the forefoot, which look like a poorly executed craft project – proved a different matter. The wear after little more than 50miles was all too noticeable and we suspect they will give out long before the Boost tech. This begs the question why have such rugged outsole material replacing EVA when the shoe’s weak-link (the grip) is going to limit the lifespan anyway?
The adidas Adizero Adios Boost retails at £110 and is available from, amongst other places, wiggle.co.uk