1One reviewer (Believe in the Run) highlights the Salomon S/Lab Ultra Glide 2 as notably lightweight for a max-stack trail shoe, measuring it at 11.2 oz — a half ounce lighter than the Nike ACG Zegama Trail and Norda 055 — while also noting the designer's separate claim of a lower ~10.2 oz weight.
If weight has been a deterrent to high-stack trail shoes, this model is worth a look — it undercuts comparable shoes like the Nike ACG Zegama Trail and Norda 055 on the scale.
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Believe in the Run observes that the Salomon S/Lab Ultra Glide 2 achieves a lightweight fit and feel.
WHAT ARE THE BEST CUSHIONED TRAIL RUNNING SHOES RIGHT NOW?9:59Believe in the Run observes that the Salomon S/Lab Ultra Glide 2 has a similar stack height and similar construction to the Nike ACG Zegama Trail and the Norda 055, but is lighter than both.
Norda 055 vs Nike ACG Zegama | Between Two Shoes10:32Believe in the Run measured the Salomon S/Lab Ultra Glide 2 at 11.2 oz, which is a full half ounce lighter than the Nike ACG Zegama Trail (11.9 oz in a men's 10.5) and the Norda 055 (11.7 oz in a men's 11).
Norda 055 vs Nike ACG Zegama | Between Two Shoes10:32- Believe in the Run
The interviewer remarks that weight has been somewhat of a concern because this is a big shoe, one of the highest stack shoes on the market.
Salomon 2026 Trail Preview | The Running Event 20256:48
2Reviewers describe a dual-density midsole in the S/Lab Ultra Glide 2, pairing a firmer outer foam for stability and structure with a softer, energetic PEBA-based core foam for comfort and bounce.
The carrier-and-core construction aims to balance cushioning with stability, so buyers get super-foam comfort without a fully soft, unstructured ride.
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Believe in the Run observes a dual-density midsole construction in the Salomon S/Lab Ultra Glide 2: an outer foam that is more firm and dense for structure and protection, and an inner foam that is softer, energetic, and supple for comfort and performance.
WHAT ARE THE BEST CUSHIONED TRAIL RUNNING SHOES RIGHT NOW?9:59- Believe in the Run
The designer states that inside the shoe the S/Lab Ultra Glide 2 uses OptiVibe Plus, a PEBA super foam that performs under the foot, framed by OptiVibe which holds the stability and ride of the shoe, describing a carrier-and-core construction.
Salomon 2026 Trail Preview | The Running Event 202510:15 - Doctors of Running
The Salomon S/Lab Ultra Glide 2 uses an Optivibe Plus midsole, which is a different midsole from the regular Ultra Glide.
3One reviewer finds the S/Lab Ultra Glide 2 firmer, more bouncy, and more performance-oriented than the regular Ultra Glide, trading plushness for resilience in line with the S/Lab racing focus.
Buyers who want maximum plushness may prefer the standard Ultra Glide; those seeking a snappier, more resilient ride for faster efforts may find the S/Lab version better suited.
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Doctors of Running finds the Salomon S/Lab Ultra Glide 2 feels a touch firmer than the regular Optivibe midsole.
We Rank Our Top 5 Favorite Max Cushion Shoes of All-Time9:39Doctors of Running finds the Salomon S/Lab Ultra Glide 2 feels a little more bouncy than the regular Optivibe midsole, providing a little more resilience.
We Rank Our Top 5 Favorite Max Cushion Shoes of All-Time9:39Doctors of Running finds the Salomon S/Lab Ultra Glide 2 is not quite as plush as the regular Ultra Glide.
We Rank Our Top 5 Favorite Max Cushion Shoes of All-Time9:39
4Reviewers and the brand describe a Matrix upper on the S/Lab Ultra Glide 2 that is lightweight, breathable, durable, and designed not to hold water, with incremental fit improvements including a new heel pattern and booty construction.
The upper is engineered for technical terrain and long distances, with a more fitted, structured feel than all-trail shoes — buyers who need a roomy toe box may find it narrow.
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Believe in the Run reports that S/Lab Ultra Glide 2 updates the upper to Matrix material (Matrix micro, the lightest version, seen on the S/Lab Genesis), which is lightweight, very durable, very breathable, and does not hold water so the shoe does not carry extra weight in wet conditions.
Salomon 2026 Trail Preview | The Running Event 20256:48- Believe in the Run
The interviewer observes that both the v1, v1.5, and this v2 have incrementally improved fit, and that with the booty construction in the Matrix the reviewer feels the brand is focusing on fit again.
Salomon 2026 Trail Preview | The Running Event 20256:48 - Believe in the Run
The Salomon designer states that they created a new pattern in the heel to improve comfort around the heel, addressing feedback about issues there.
5The S/Lab Ultra Glide 2 carries one of the highest stack heights on the market, with the brand listing 41 mm heel and 35 mm forefoot.
This is a max-cushion shoe by design; runners sensitive to high stack or seeking a lower-profile ride should look elsewhere.
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Opinions (3)
Believe in the Run (Taylor, Believe in the Run) categorizes the Salomon S/Lab Ultra Glide 2 as a max-stack trail shoe with stack height of 38 mm in the heel or higher.
WHAT ARE THE BEST CUSHIONED TRAIL RUNNING SHOES RIGHT NOW?Watch source- Believe in the Run
The Salomon designer lists the stack as 41 mm in the heel and 35 mm in the forefoot for the S/Lab Ultra Glide 2.
Salomon 2026 Trail Preview | The Running Event 20256:48 - Believe in the Run
The interviewer remarks that weight has been somewhat of a concern because this is a big shoe, one of the highest stack shoes on the market.
Salomon 2026 Trail Preview | The Running Event 20256:48
6One reviewer positions the $250 price between cheaper and more expensive competitors, while another speculates the S/Lab may not be worth the premium over the standard Ultra Glide 4 depending on what the buyer values.
The price is mid-range for premium high-stack trail shoes, but buyers should weigh whether the S/Lab's performance-oriented refinements justify the cost over Salomon's own standard Ultra Glide.
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Opinions (2)
Believe in the Run notes that the Salomon S/Lab Ultra Glide 2's price is $250, which sits between the Nike ACG Zegama Trail ($180) and the Norda 055 ($325).
Norda 055 vs Nike ACG Zegama | Between Two Shoes10:32Doctors of Running speculates that the Salomon S/Lab Ultra Glide 2 may not be worth the price increase over the Ultra Glide 4, depending on what the buyer values.
We Rank Our Top 5 Favorite Max Cushion Shoes of All-Time9:39
7One reviewer notes the S/Lab Ultra Glide 2 contains no plates or mechanical devices protecting the foam, delivering only the dual foams underfoot.
Unlike some max-stack shoes that use plates for structure or propulsion, this shoe relies entirely on foam density pairing — buyers who prefer plateless rides or dislike plate stiffness may appreciate this.
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Opinions (1)
Believe in the Run states that the Salomon S/Lab Ultra Glide 2 does not have any mechanical advantages, plates, or other mechanical devices protecting the foam — the runner gets just the foams underfoot.
WHAT ARE THE BEST CUSHIONED TRAIL RUNNING SHOES RIGHT NOW?13:22
8Reviewers observe a grippy, full-contact outsole with a wider footprint and bathtub construction for stability on technical terrain.
The outsole is built for grip and ground contact on rugged trails, with stability features aimed at technical terrain rather than smooth fire roads.
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Opinions (3)
Doctors of Running observes the Salomon S/Lab Ultra Glide 2 has a full-contact outsole that is very grippy.
We Rank Our Top 5 Favorite Max Cushion Shoes of All-Time9:39Believe in the Run observes that the Salomon S/Lab Ultra Glide 2 has a "bathtub construction" and wider outsole for stability purposes.
WHAT ARE THE BEST CUSHIONED TRAIL RUNNING SHOES RIGHT NOW?9:59Believe in the Run classifies the Salomon S/Lab Ultra Glide 2 in the "technical terrain" / "rugged or technical terrain" subcategory of max-stack trail shoes.
WHAT ARE THE BEST CUSHIONED TRAIL RUNNING SHOES RIGHT NOW?9:59
9The brand and reviewers frame the S/Lab Ultra Glide 2 as an ultra-distance shoe where small details matter, with one reviewer suggesting it could serve runners targeting 200-mile events and another speculating it would suit a 100K course.
The shoe is purpose-built for very long efforts, with design choices like a gaiter for debris and heel comfort refinements that address pain points specific to ultra distances.
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Opinions (3)
- Believe in the Run
The designer describes the S/Lab Ultra Glide 2 as an ultra-distance shoe where small details become big pains at longer distances.
Salomon 2026 Trail Preview | The Running Event 20256:48 - Believe in the Run
The interviewer reports having put a bunch of miles in the 'dust version' of this shoe with the same midsole and outsole and loves it for training, even suggesting it could be a 200-mile shoe for people who want to do 200.
Salomon 2026 Trail Preview | The Running Event 202510:15 Conversational Pace speculates that the Salomon S/Lab Ultra Glide 2 would be a solid shoe for the Gorge Waterfalls 100K course.
2026 Gorge Waterfalls 100k Race & Gear Recap. Lessons Learned!
10One reviewer expects the S/Lab Ultra Glide 2's durability to be closer to the Norda 055 (projected 600–800 miles) than to the Nike ACG Zegama Trail.
Durability appears promising relative to competitors, which could help offset the $250 price over the shoe's lifespan.
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Opinions (1)
11One reviewer finds the S/Lab Ultra Glide 2 better than the Ultra Glide 4 overall, while also questioning whether the improvement justifies the price difference.
The S/Lab is a step up in performance feel over the standard Ultra Glide, but the value proposition depends on how much the buyer prioritizes that performance edge.
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Opinions (2)
Doctors of Running finds the Salomon S/Lab Ultra Glide 2 is better than the Ultra Glide 4.
We Rank Our Top 5 Favorite Max Cushion Shoes of All-Time9:39Doctors of Running speculates that the Salomon S/Lab Ultra Glide 2 may not be worth the price increase over the Ultra Glide 4, depending on what the buyer values.
We Rank Our Top 5 Favorite Max Cushion Shoes of All-Time9:39
