S/Lab Pulsar 4 Trail Running Shoe
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Featherlight and ultra-responsive, the S/Lab Pulsar 4 is built for record-breaking trail speed
What Our Gearhead® Experts Are Saying:
"This shoe is all about speed. The Energy Surge midsole delivers an insanely propulsive ride, and the rockered shape keeps me moving forward effortlessly. The Matryx upper fits like a sock, offering a precise, locked-in feel without extra weight. Whether I’m racing on technical terrain or chasing a PR on smooth singletrack, the S/Lab Pulsar 4 gives me the confidence to push the pace."
Designed for runners chasing podiums and personal bests, the Salomon S/Lab Pulsar 4 blends cutting-edge innovation with race-ready performance. Built in collaboration with elite athletes, this ultra-light trail shoe delivers the speed, precision, and responsiveness needed to dominate technical terrain. The Energy Surge midsole, Salomon’s lightest yet, offers a soft yet explosive ride, while the rockered profile keeps our stride efficient through every push-off.
The reinforced Matryx upper wraps around the foot like a sock, providing a secure, breathable fit without extra bulk. Whether we’re flying through switchbacks, powering up steep climbs, or sprinting for the finish, the S/Lab Pulsar 4 maximizes speed and agility while maintaining grip and control over varied surfaces. This is the shoe for those who refuse to settle for anything less than peak performance.
Details
- Ultra-light trail racing shoe built for speed and agility
- Energy Surge midsole delivers a soft yet explosive ride
- Rockered shape enhances efficiency and propels every step forward
- Reinforced Matryx upper offers a precise, sock-like fit for stability and comfort
- Designed in collaboration with elite athletes for peak performance
- 6mm drop with a 27mm heel and 21mm forefoot stack for an optimal balance of cushioning and ground feel
- Weighs just 6.2oz, keeping weight to a minimum for maximum speed
- Item #SALZB0Z
- Upper Material
- Matryx
- Lining
- textile
- Closure
- Quicklace
- Midsole
- Energy Surge
- Sole
- Contagrip TA
- Heel / Forefoot Height
- 27/21mm
- Drop
- 6mm
- Manufacturer Warranty
- limited 2 years
- Activity
- trail running
Reviews
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Overall Rating
3.5 based on 6 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageSeptember 9, 2025
Great short distance shoe
much heavier than my Pulsar 2, but more sturdy and cushioned. Love the s/lab fit and lace system. Rocked these at SpeedGoat 2025 and was happy with how the handled the rockfall section. Great for 20K to 50K distances
Originally reviewed on salomon.com
September 8, 2025
Huge blister on ankle after only 3 miles.
These felt so comfortable at first - but after a short out and back to tea them I got a huge blister on my ankle that has disrupted training just weeks before a race. The heal is so poorly made. I did notice the left shoe seemed to be made improperly, but with all the negative reviews about ankle blisters - I am afraid to try another pair for fear of another awful blister!
Originally reviewed on salomon.com
August 19, 2025
Tongue fold issue
Not a replacement for the S/LAB Ultra 3 which is very disappointing. The tongue folds almost immediately over the forefoot , ruining what is probably a pretty fun, fast shoe. Doesn't filter rocks well enough - too much deformation. Also, can't remove the insole if your someone that likes to use their own footed. Overall, a real miss with a shoe that has potential.
Originally reviewed on salomon.com
July 21, 2025
Best Pulsar yet
Great shoe, easier to get on Really responsive If one fault the grip could be better, I feel Salomon are getting left behind. If there was a vibram sole on this shoe it would be outstanding Overall very good shoe
Originally reviewed on salomon.com
June 24, 2025
Pulsar revamp- Bravo Bravo
Where can I start- I’ve ran in the pulsar since their first launch and this in my opinion is a homage to the Pulsar 1 with IMPROVED cushioning. You get the perfect ground feel but with the added benefit of new technology and the added cushioning. Giving this racer an edge. Absolutely fantastic performance by Salomon. It’s like a genesis and the original pulsar had a baby. Simply wonderful at every distance.
Originally reviewed on salomon.com
June 21, 2025
A longer-distance Pulsar
The Pulsar 4 is reminiscent of the original Salomon Ultra shoes of a decade ago but with better midsole foam and a more pliant yet protective upper. It is closer to the S/Lab Genesis or the Ultra 3 in design and I think purpose than the Pulsar 3 or previous Pulsars. As a technical mountain shoe, I’m considering racing my next 100 K in these. It’s lighter than most of its competitors yet very comfortable and quick underfoot.
Originally reviewed on salomon.com
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