AdidasUltraboost 23

The Ultraboost 23 suits all-day comfort, casual running, style-conscious — particularly on road and street surfaces. The 10mm heel drop works well for heel strikers and runners with tight calves. SoleHunt scores it 85/100 overall, placing it in the upper tier of versatile trainer options.

True to size. Sock-like fit. The Ultraboost 23 is available from UK 4–14. Its 93mm toebox is roomy, with space for wider feet and swelling on long runs.

The Ultraboost 23 weighs 302g (UK size 9 men's reference weight). That is moderately heavy for a versatile trainer. Weight is unlikely to be a limiting factor for most runners.

The Ultraboost 23 has a mid 10mm drop that works with most running gaits. The heel stack measures 34mm and the forefoot 24mm. This geometry suits the broad majority of heel-striking runners and those transitioning from conventional shoes.

Yes — the Ultraboost 23 has a removable insole and is rated orthotic-friendly. With 34mm of heel stack and a plush and deeply cushioned midsole at 25 HC, there is sufficient volume to accommodate standard custom orthotics without the overall stack feeling excessive.