Altra Olympus 4

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The Altra Olympus 4 is a very good trail running shoe that’s ideal for long runs with its maximum cushioning and wid platform.


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9.3Overall score
Very good comfortable trail running shoe with high-stack and springy cushioning
The Altra Olympus 4 is a trail shoe with a high-stack sole (33 mm), zero drop (so no offset between heel and toes), and a wide platform. This new version is more refined, however, which gives the shoe a more streamlined and less massive design. However, it retains the qualities that have made it so successful. Its high-stack cushioning ensures comfortable shock absorption throughout the run. Also, the running sensations are responsive with an enjoyable bounce. Of course, with its relatively heavy weight (318 g for men, 289 g for women), this is not a model made for speed and daring descents. The Olympus is a trail running cruiser that's all about comfort. It shows in the upper with a mesh that now has an open texture for better ventilation. The result is a pleasant and rather ample lockdown (be careful if you have narrow feet). The toe box is spacious as on all Altra models. Finally, the grip is very good with a Vibram MegaGrip rubber sole that features moderate lugs. The configuration is sturdy and can take a beating according to trailers who tested the shoe. Thus, the Olympus 4 is a comfortable option for medium difficulty trails (its ample foot lockdown and not-so-aggressive lugs don't make it the best choice for the most technical surfaces). A very good shoe for trailers looking for maximum comfort for their long trail runs.
Value for money
  • Great comfort
  • Maximalist and springy cushioning
  • Comfortable upper with ample lockdown and spacious toe box
  • Sturdy model
  • Effective traction on intermediate level trails
  • Still on the heavy side
  • High price
  • May be insufficient on very technical trails

Model: Altra Olympus 4



Heel to toe drop

0 mm

Heel stack height

33 mm

Forefoot stack height

33 mm



, ,

Weight (men)

318 g/11.2 oz

Weight (women)

289 g/10.2 oz

Release year


Bounce (1-5)

4 – Bouncy

Softness (1-5)

4 – Soft


Mid distance, Long distance


Slow, Moderate


Daily running, Recovery


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  • First, the Vibram MegaGrip is in the outsole of the Altra Olympus 4. It’s a sturdy, naturally sticky rubber designed specifically for trail running with a reputation for excellent grip. This system provides a perfect traction on rough trail trails, which leads to a safe ride even on treacherous descents.


  • The midsole uses the A-Bound cushioning technology, a flexible foam made from recycled materials. It ensures good shock absorption on impact during trail running for optimal comfort. Also, this configuration should ensure optimal energy return for a responsive ride.
  • Then there’s the Inner Flex technology which translates into a system of flex grooves whose purpose is to increase the flexibility of the sole. This way the shoe can follow the movement of the foot while running for more comfort. This configuration also helps reduce the weight of the shoe.
  • Next, FOOTSHAPE is a platform that adapts to the anatomy of the foot, particularly to the metatarsals, to ensure a more natural run. Like the rest of the Altra range, the Olympus is zero drop, i.e. there is no offset between the heel and the toes.
  • Finally, Balanced Cushioning adjusts the cushioning of the shoe for a more natural movement and a more efficient stride, according to Altra. This technology goes hand in hand with the brand’s zero drop approach.


  • The upper of the Altra Olympus 4 features an engineered mesh. It pleasantly envelops the foot and increases airflow during training, especially when it’s warm outside.
  • Besides, Premium Tongue is a padded tongue that locks-in the foot more comfortably.
  • Finally, the gaiter attachment system makes it easy to add gaiters for even more advanced foot protection on the trails. Note that gaiters are usually sold separately.

Frequently asked questions (FAQ)

Does the Altra Olympus 4 fit true to size?

This trail shoe follows a standard sizing system. Athletes who have tried the shoe confirm that it fits without surprise. Therefore, you can choose your regular size for trail shoes. However, if this is your first Altra model, a visit to the store is advisable.

Is this trail shoe suitable for heavy runners (85 kg/187 lbs or more)?

To our knowledge, only one scientific research study to date has investigated the relationship between weight, risk of injury, and stack height. According to the results of this study, shoes with skinny soles (minimalists) may increase the risk of injury for athletes who weigh more than 71 kilograms (157 pounds). The Olympus 4 offers a generous stack height with 33 mm and should, therefore, suit you regardless of your weight.

Is it possible to run an ultra-trail with this model?

This Altra trail shoe is versatile enough to suit different types of training and distances. However, with its ample foot lockdown and medium lugs, it’s a shoe that can lack effectiveness on very technical terrains. For ultra-trail, it depends above all on your experience and preferences. If you have trained with this shoe throughout your preparation, then there is no reason not to choose it for your race.

Is this model waterproof?

This trail shoe does not feature Gore-Tex (or any other waterproof technology). However, without being 100% waterproof, the shoe effectively repels small amounts of water, such as fine rain and splashes, and dries quickly. This configuration has the advantage of increasing airflow during effort and being lighter. Also, its gaiter attachment system makes it easy to add gaiters for better protection of the foot against water and debris.

Comparisons – Altra Olympus 4 vs:

Altra Olympus 3.5

The Olympus 4 marks a slight improvement in the series with more comfortable cushioning and slightly lighter build. The upper is also more breathable with the new open mesh texture. However, at $170 (base price), this new model is frankly not cheap. If you can find the 3.5 for much less, go for it!

Hoka Speedgoat 4

Both shoes have a maximalist (i.e., high stack height) sole, but the cushioning of the Speedgoat 4 is firmer. Also, the Hoka offers tighter foot lockdown and deeper lugs, which is reassuring on difficult trails. The choice of one or the other depends on your goals, however. If you have a race in mind, the SG4 seems more appropriate. If you are above all looking for comfort, the Olympus 4 is for you.

Altra Olympus 4 review trail running shoes

Altra Olympus 4 Vibram MegaGrip rubber lugs

1 review for Altra Olympus 4

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  1. Runner’s Lab

    Very good comfortable trail running shoe with high-stack and springy cushioning.

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