78
Decent!
14 users: 4.1 / 5
5 experts: 88 / 100
Terrain: Road
Weight: Men 7.8oz / Women 7.8oz
Heel to toe drop: Men 8mm / Women 8mm
Arch support: Neutral

Verdict from 6.1 hours of research from the internet

5 reasons to buy

  • The Salomon S-Lab Sonic is very lightweight.
  • The light upper built is also very breathable as mentioned in some reviews.
  • The outsole of the shoe is very durable and delivers enough traction while running on the road.
  • Has enough room for toe splay.
  • Many runners noticed the flexibility of the shoe.

2 reasons not to buy

  • It is an ultra expensive running shoe.
  • The upper mesh wears out quickly.

Bottom line

The Salomon S-Lab Sonic is an impressively light running shoe designed for neutral foot motion. It performs well on the road and great on daily training and high mileage runs. The shoe delivers great amount of cushioning, flexibility and outsole durability.

Tip: see the best running shoes.

Expert reviews:

  • The very noticeable change is the upper of the Salomon S-Lab Sonic. From the “speed laces” to the traditional yet retro fabric laces, the lacing system is one of the features modified in this version. The traditional retro laces are thin and light, and its fabric does not absorb water or wetness. They also provide fast lacing and tight closure of laces, which is a perfect match for fast trail running.
  • The upper also has a super light yet breathable mesh material all throughout the upper. The single mesh material replaced the lycra material, nylon mesh, and super thin mesh that are present in previous version.
  • TPU overlays are also added, covering the toe area and other parts of the upper for more protection and support. With the new mesh upper and overlays, the S Lab Sonic feels light, soft, and protective.
  • The heel counter is also changed from more to less in the S Lab Sonic. This design offers a better heel comfort and snug.
  • The midsole of this shoe have a different heel and forefoot stack height due to some thickness of cushioning in the heel with about 6mm and 2 mm on the forefoot area.
  • On its outsole, only a minimal change is done. Almost all of the Salomon S Lab series have a carbon rubber on the lateral heel, but this feature is lacking in the S Lab sonic, which reduces its durability and protection on heel abrasion.

The S-Lab Sonic is a unisex running shoe available in men’s size. It is true to its size. The fit is enhanced with a snug fit and comfortable toe box and forefoot area fit for narrow to medium, medium to low volume mid-foot, and narrow to medium heel area. Women should buy at least 1.5 size smaller than the actual size to get the right size.


Similar to the well known Salomon Sense Ride 2, the Premium High Abrasion Contragrip rubber outsole is utilized in the S Lab Sonic. This is the type of rubber that offers high traction and grip for a wide range of trail and ultra-trail running.


Salomon utilized the EnergyCell + foam material, which is lightweight and long lasting cushioning foam. It is also great in providing excellent rebounds.

The Energy Cell, which is also featured in the shoe's latest version, the S Lab Sonic 2 is also placed on the midsole, is for shock attenuation. It is designed to provide softer landing and better take off.

Added to that is the ProFeel Film, which is a thin and lightweight TPU film placed in the midsole. It provides additional underfoot protection without reducing the ground feel.


The open mesh material is utilized in the upper of the Salomon S-Lab Sonic. This is a lightweight, breathable, and quick drying upper material that covers the entire upper. Protecting the mesh is the synthetic overlays and the toe cap of synthetic material. For a secure wrap and fit, Salomon added the Sensifit overlays to the upper, which provides the protection as well. For the inner part of the shoe, the Endofit is present, and it provides the sock-like comfort and fit for an enjoyable running experience.

Size and fit

True to size based on 8 user votes
Small (0%)
True to size (75%)
Large (25%)
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Same sizing as Salomon S-Lab Sonic 2.

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How S-Lab Sonic compares

This shoe: 78
All shoes average: 86
58 99
This shoe: $170
All shoes average: $119
$40 $350
This shoe: 7.8oz
All shoes average: 9.5oz
3.5oz 16.2oz
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