Review: adidas TERREX Speed Pro SG Running Shoe

Is this the best fell-running shoe of all time?

Feature type Review

Read time 4 mins

Published Dec 13, 2023

Author Mark Bullock

Mark Bullock Mark is a passionate climber, whose dream days are spent soloing easy routes in the big hills, dashing down at last light for pizza. He’s a writer, qualified Mountain Leader & Climbing Instructor, and has even won a few photography awards.


Is this the best fell-running shoe of all time? It’s a firm ‘yes’ from me.

All products featured on BASE are independently selected by our editors. However, when you buy something through our retail links, we may earn an affiliate commission. Here’s how it works.

Weight 225g
Drop 4mm
Features Continental rubber sole, open mesh upper, Lightstrike midsole, 7mm chevron lugs


  • Light and dextrous, the grip the sole unit gives is basically unparalleled
  • Grip on rock, grip on grass and mud, and dexterity/feel that is the best I’ve tested since the inception of the MudClaw
  • Open Mesh upper drains water away quickly


  • There’s no con… Ok, maybe that they don’t last forever?


For a fell shoe – and that is to say, not a trail shoe, and not an ultra shoe – I want something with really aggressive lugs and grip. Going off paths onto rough tussocks, heather bashing, steep grass and mud, or scrambling or boulder-hopping on rock – you want something you trust. You want a sensitivity of feel for the terrain, and confidence in your foot placements.


When I took my first pair of these out of the box it was obvious they were a ‘race’ shoe. Light, tight (low volume but not narrow), no insole, open mesh upper, everything pointed to something for racing in (I’m steadfastly not a racer!). Something functional without compromise.


I’ve had my first pair of these for 3-4 years and have run Bob Graham support legs, faster Wainwright bagging link ups, scrambled in Torridon and Skye and many more human-powered adventures than I can recall.

As for this latest iteration of the Speed Pro SG, I’ve used them as approach shoes for big mountain climbs in Lofoten (they’re light and sticky, I only wish they had a heel loop to clip them to my harness), as well as circuits of my favourite Dartmoor Tor’s.


I think these are for anyone who fell-runs. When the terrain is rough, steep, wild, unforgiving or soft (the SG stands for ‘soft ground’, in case you were wondering) these shoes will genuinely help everyone. It needn’t be a race, for off-trail mountain and hill running days these are going to look after you. 



So there are just two things that stand out the most to me, and that is in part due to the simplicity of functional design and construction. The design of this shoe truly is everything you need it to be, and nothing you don’t. Simple.


The sole unit

Continental rubber is the best I’ve ever used (I’m looking at you Vibram, Contragrip, G-Grip et al), they stick to rock so well, and the lugs just feel like football studs when you’re on steep grassy ground. Add to that the minimal drop and thinness of the sole and you’ve also got real dexterity and sensitivity.


The upper

Open mesh that is tough, and durable, but that allows water out and your foot to air-dry better than any other shoe I’ve used in 15 years of mountain running. There’s not much to the upper construction – no heel cup for example – but that only adds to their genius sock-like fit. No rubbing, no hot spots. The low volume fit just feels so secure.


The design of this shoe truly is everything you need it to be, and nothing you don’t. Simple.


£140: To be honest that’s as much as I would pay. Finding them in a sale somewhere (and being very, very grateful for getting a complimentary test pair – thank you BASE!) is how I’d personally prefer to acquire them, of course. But that said, they’re so good I’m tempted to stockpile a couple of pairs as I can’t imagine a new model ever surpassing them.


I can’t emphasise this enough: these are the best fell running shoes ever made. I’m not from Cumbria but over the years I’ve made friends with lots of Lakes runners and I know very well that the community is somewhat circumspect of outsiders – haha! I know they won’t have relished The Three Stripes being part of the fell running scene or uniform. Walshes were always the local favourite. But I’ve known enough Lakes runners agree with me that these shoes are the current market leaders for what is actually quite a niche market. Trail and Ultra-running have boomed in recent years but true fell-running – off-trail, trackless lines through bogs, over heather, on rock, steep grass – it will quickly find the limitations of shoes that are a compromise of cushioning and aesthetics. For born and bred third generation Borrowdale runners to say that adidas have made the best fell shoe, that’s a genuinely big statement and testimonial believe me. My first pair lasted me 3+ years of pretty full on mountain abuse. According to my Strava there’s 468 miles on their clock, but remember – those aren’t cruisey tarmac miles; they’re miles getting scuffed, soaked, bashed, scratched, and pounded downhill (by a not very graceful 80kg man). 

So being classed as a ‘race’ shoe is fair enough. Save them for the weekends if durability is your guide. But from the very first wear of these, I knew right away I’d be replacing them with the exact same model as soon as they needed it.

Heading out on a human-powered adventure?

BASE tests the latest and greatest trail shoes

ReviewBronte Dufour • September 27, 2023

Review: INOV-8 Trailfly Ultra G 280 Women’s Running Shoe

An energetic and bouncy trail shoe with stand-out grip

ReviewLena Drapella • September 11, 2023

Review: Arc’teryx Norvan LD3 Women’s Trail Shoes

A great all-round trail shoe with a bold and interesting design and a lightweight yet supportive feel

ReviewMark Bullock • July 24, 2023

Review: Arc’teryx Norvan LD3 Trail Shoes

The lightweight, supportive trail running shoe designed for extended runs

ReviewAlex Foxfield • July 05, 2023

Review: Salomon X Ultra 4 GTX review

A capable, understated and speedy, lightweight hiking shoe

ReviewEmily Graham • October 07, 2022

Review: Danner Women’s Trail 2650

The lightweight breathable trail shoe

ReviewMatthew Pink • August 02, 2022

Review: Adidas Terrex SoulStride trail running shoes

A comfy and stable beginner’s trail shoe that transitions easily between terrains

Don’t miss a single adventure

Sign up to our free newsletter and get a weekly BASE hit to your inbox

  • facebook
  • twitter
  • linkedin
  • whatsapp
  • reddit
  • email

Other posts by this author

ReviewMark Bullock • Mar 07, 2024

Review: adidas Free Hiker 2.0 Low Gore-Tex Shoe

A really great, high-performing shoe for a super wide variety of activities.

ReviewMark Bullock • Sep 19, 2023

Review: The North Face Bolt Polartec Jacket

A light, breathable, stretchy and versatile midlayer that is suitable for a variety of activities

ReviewMark Bullock • Jul 24, 2023

Review: Arc’teryx Norvan LD3 Trail Shoes

The lightweight, supportive trail running shoe designed for extended runs

You might also like

ReviewMatthew Pink • Jun 20, 2024

Review: Teva Hurricane XLT Men’s Sandal

A fairly priced, solid bet for a summery adventure sandal in both the wet and dry.

ReviewMatthew Pink • Jun 19, 2024

Review: Men’s Nnormal Tomir 2.0 Shoe

A cool, tough and versatile shoe from an emerging brand to keep an eye on.

ReviewFrancesco Guerra • May 17, 2024

Review: Suunto Vertical Titanium Solar

The new Suunto® Vertical is a large screen adventure watch for outdoor expeditions with apparently the most resilient battery out there.