Terrex Agravic Speed Ultra 1

For most runners it fits true to size, so order your usual trail number. The fit is racy and secure through the midfoot and heel, with a performance-shaped toe box rather than a roomy one. If you have a wide forefoot or want extra room for toe splay on long ultras, consider sizing up a half. Try before you buy if you can, as the snug race fit suits some feet better than others.

Yes, for the right runner and distance. It shines over shorter ultras and fast long runs where its 259g weight keeps your legs fresh late on. The ride is firm and connected rather than plush, so it rewards trained legs and a light, efficient stride. For very long, slow all-day ultras on rough ground you may want more cushioning, but as a fast trail racer it does its job well.

Not really. It is a specialist competition racer with a firm ride, a race-snug fit and a firm, low-stack ride that loads the calves and Achilles more than most trainers. New trail runners are better served by a more cushioned, supportive and forgiving shoe while they build strength. If you are just starting out, save this one for later and choose something more relaxed and everyday-friendly first.

It takes a leaner, more natural route than plated rivals. Where the Salomon S/Lab Genesis 2 and other race shoes lean on aggressive builds or plates for propulsion, the Agravic Speed Ultra keeps things light, low and unplated, trusting your own legs to do the work. That makes it feel honest and agile on technical ground, though you miss the springy pop a carbon plate gives. Choose it if you prefer feel and low weight over plated propulsion.

As a lightweight racer it prioritises low weight over long-haul toughness, which is normal for this type of shoe. The thin race upper and speed-focused build will not last as long as a burly daily trail trainer, especially if you use it for every muddy run. Treat it as a race-day and key-session shoe rather than an everyday workhorse and it will reward you with many fast miles before it wears down.