We spent 7.4 hours reading reviews from experts and users. In summary, this is what runners think:

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.


Terrain: Trail
Arch support: Neutral
Weight: Men: 10.7oz | Women: 9oz
Heel to toe drop: Men: 10mm | Women: 10mm
Pronation: Neutral Pronation
Arch type: High arch
Use: Jogging
Material: Vegan
Strike Pattern: Heel strike
Distance: Daily running | Long distance | Marathon
Heel height: Men: 26mm | Women: 26mm
Forefoot height: Men: 16mm | Women: 16mm
Brand: La Sportiva
Type: Heavy | Big guy
Width: Men: Normal | Women: Normal
Price: $130
Colorways: Black, Blue, Brown, Grey, Orange, Purple, Yellow
Small True to size Large
See more facts


A top rated Trail running shoe
Top 4% most popular running shoes

Expert Reviews

Experts are runners, who post reviews at youtube, directly at RunRepeat or at their own websites. Each expert is categorized from level 1 to level 5 based on expertise. See stats on expert reviews and how we calculate scores here.

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84 / 100 based on 14 expert reviews

  • 80 / 100 | GEARIST | | Level 3 expert

    In any even, this is another really great and solid shoe from La Sportiva.

  • 90 / 100 | Road Trail Run | | Level 5 expert

    If the focus is steep, off trail, scrambling, mixed mountainous terrain, where a very precise and locked upper, flexible toe, maximum sticky rubber traction and overall protection are the priority, the Mutant is the clear choice. 

  • 88 / 100 | Road Trail Run | | Level 5 expert

    While for most purposes I would prefer lower lugs, the Mutant has performed admirably on all terrain, even the road.

  • 80 / 100 | Gearist | | Level 5 expert

    I think the La Sportiva Mutant, while certainly at home on technical terrain, is a really well-rounded trail running shoe that you should really think about for whatever trails you’re interested in.

  • 80 / 100 | Runner's World | Level 5 expert

    The Mutant is an enigma. The sole is thick, stiff, and so firm it borders on hard; the upper is small and narrow.

  • 89 / 100 | Ultra Running Community | | Level 3 expert

    So, to summarise, the Mutant is a true beast of burden that will keep working no matter what the elements and the terrain can throw at it.

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  • 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.


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.