Verdict from 16 experts and +100 user reviews

6 reasons to buy

  • The upper of this shoe is made up of breathable, abrasion-resistant mesh with an integrated gaiter.
  • The Mutant features the SpyralTongue technology, which provides quick fitting and protection against mud and stones while running.
  • The hazards of the trials are kept at bay by reliable anti-debris mechanisms in the upper and sole unit.
  • The mid-sole delivers efficient cushioning and heel stability.
  • The AT Grip Spike feature that offers impressive grip while running on soft and muddy surfaces gained positive feedback from runners.
  • Some runners took note of the reliable and durable construction of the Mutant especially on technical trails.

3 reasons not to buy

  • Some runners found the Mutant a little stiffer.
  • Its price is slightly expensive.
  • There were testers who noted that the toe section of the shoe was a bit narrow.

Bottom line

The La Sportiva Mutant is an aggressive trail running shoe that’s versatile and stable. It’s ideal for off-road trails, racing and mountain running. With the stability, protection and impressive grip of this shoe, this shoe will not disappoint even if used in different types of terrain.

Tip: see the best running shoes.

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Video reviews

Good to know

  • The La Sportiva Mutant features the ultra sticky outsole for maximum traction on slippery and muddy terrain. It also gives added durability to the shoe’s outsole unit.
  • It also uses the brand’s unique tongue. It still features the traditional shoe tongue but with added protection, keeping stones and mud from entering the shoe while running. An alternative running gear would be the Altra Lone Peak 4.0.

The Mutant has a regular running shoe sizing. It is available in the medium widths. It gives a perfect fit to runners with narrow to medium foot measurements. The heel is a bit narrow and the midfoot and forefoot have standard measurements.


The outsole unit of the Mutant uses the brand’s FriXion XF technology. It is a sticky compound engineered to deliver impressive traction on rocky or technical surfaces.

It also uses the brand’s V-Groove technology with Impact Brake System that enhances the shoe’s braking power and decreases impact forces. The combining power of these two elements gives additional cushioning and traction.


The midsole uses the Injection Molded EVA that provides sufficient underfoot cushioning. This works well with the TPU Heel Stabilizer that delivers an enhanced fit by keeping the heel snug and secure.


The upper of the La Sportiva Mutant uses the Air Mesh cover that keeps the foot well-ventilated. The foot will be kept cool and dry without affecting the shoe’s breathability features. 

The shoe’s Spyraltongue delivers an easy entry and personalized fit while giving additional protection. It prevents debris from entering the shoe and works well with the shoe’s 4 Way Stretch Gaiter. The gaiter covers the upper and keeps shoes free from small stones and debris.

It also features the Fusiongate Lacing Harness system that serves as a support system, securing the foot especially the midfoot.

Lastly, it utilizes the TPU Toe Cap that keeps the foot well-protected sharp rocks and other trail hazards.

How Mutant compares

This shoe: 87
All shoes average: 82
55 94
This shoe: £120
All shoes average: £120
£60 £230
This shoe: 303g
All shoes average: 296g
179g 680g
Ready to buy? Available from £103
Not sure yet? Overview of all 2180 running shoes
Author
Jens Jakob Andersen
Jens Jakob Andersen

Jens Jakob is a fan of short distances with a 5K PR at 15:58 minutes. Based on 35 million race results, he's among the fastest 0.2% runners. Jens Jakob previously owned a running store, when he was also a competitive runner. His work is regularly featured in The New York Times, Washington Post, BBC and the likes as well as peer-reviewed journals. Finally, he has been a guest on +30 podcasts on running.

jens@runrepeat.com