In ultra-trail, some products become the default choice. The Salomon S/Lab Ultra 12 is one of them: visible on start lines, trusted by many runners, and built around a clear performance logic.
The Tabisuke Tabizo T2 Ultra 10 sits somewhere else. It is not trying to be the most obvious vest in the race. It is a more deliberate choice — one shaped by Japanese ultra-distance culture, the brand’s Love to Run Far philosophy, and a different way of thinking about fit, storage and identity.
Salomon is the obvious choice. Tabisuke Tabizo is the intentional one.
Two ultra vests, two ways to belong
Choosing an ultra vest is not only about carrying water, layers and mandatory gear. It is also about what you decide to wear for 8, 15 or 30 hours.
The S/Lab Ultra 12 speaks the language of the established reference: efficient, familiar, widely recognised. The Tabisuke Tabizo T2 Ultra 10 speaks another language — that of the informed outsider. A runner who wants performance, but not uniformity. A runner who wants to stand apart, not necessarily stand out.
This is where the comparison becomes interesting. Not because one vest simply “beats” the other, but because they represent two different relationships to ultra-running equipment.
Specs comparison: volume, weight and hydration
On paper, the Salomon S/Lab Ultra 12 and the Tabisuke Tabizo T2 Ultra 10 are close enough to be compared directly. Both are designed for long-distance trail running, both are made to carry hydration and mandatory gear, and both target runners who need stability over long hours.
| Feature | Salomon S/Lab Ultra 12 | Tabisuke Tabizo T2 Ultra 10 |
|---|---|---|
| Volume | 12 L | 10 L |
| Weight | Approx. 205 g without accessories / 295 g with accessories, according to Salomon product information | Approx. 240 g without accessories |
| Flasks | Included | Not included |
| Hydration | Soft flask compatible | Soft flask compatible |
| Storage philosophy | High-capacity race reference | Stable, high-mounted and modular ultra-distance setup |
| Price | Varies by retailer (€200 in general) | €220 on Atmo |
The S/Lab Ultra 12 has the advantage of capacity and familiarity. The Tabisuke Tabizo T2 Ultra 10 is slightly smaller on paper, but its strength lies elsewhere: in how the load sits, how the vest can be adjusted while moving, and how the storage remains usable deep into a race.
Fit and stability: compression vs adjustment freedom
The main difference between the two vests is not only volume. It is the way they approach fit.
The Tabisuke Tabizo T2 Ultra 10 is built around the brand’s T2 High Mount Fit™ 2.0 system. The idea is to keep the load high on the upper back, compress the storage and reduce bounce while running. Instead of letting the gear sink down over time, the reverse-slant main storage helps maintain a stable, high-mounted load.
The vest also integrates the BFS — Back Fitting System, a mechanism that allows the runner to fine-tune the fit with one hand, even while running. This matters more than it may sound. During an ultra, the vest does not stay in the same configuration for the entire race. It changes as flasks empty, layers are added or removed, food disappears, and fatigue builds.
The strength of the Tabisuke Tabizo T2 Ultra 10 is not only that it feels stable. It is that the runner can keep refining that stability while moving — depending on how full the vest is, how many layers are worn, and how the load evolves during the race.
The chest belt also uses elastic dampers to reduce interference with breathing. It is removable and can be positioned or configured depending on personal preference, allowing each runner to find the balance between freedom, compression and stability.
For a closer look at this system, read our full article on Tabisuke Tabizo’s High Mount Fit support technology.
Storage: quick access matters more than raw litres
It is tempting to reduce this comparison to 12 litres versus 10 litres. But in ultra-distance running, raw volume is only part of the equation. Storage only matters if it remains accessible, stable and usable after several hours of movement.
This is one of the most convincing aspects of the Tabisuke Tabizo T2 Ultra 10. The rear shell pocket allows a jacket to be stored and retrieved without removing the vest. Its elasticity helps keep the layer securely in place, even when moving fast or when the vest is not fully loaded.
At the front, the flask pockets use compression cords to reduce bounce and prevent soft flasks from sagging as they empty. This is a small detail, but one that becomes very noticeable over long distances. A half-empty flask that moves with every stride can quickly become irritating.
The vest features eight pockets in total, including front flask pockets, additional front storage for nutrition and small essentials, rear storage, a shell pocket and a kangaroo pocket. There are no zips on the front pockets, but the construction is designed so that items remain secure while staying easy to access.
In other words, the T2 Ultra 10 is not trying to win the comparison by adding more and more compartments. It is trying to make each access point useful while running.
Poles, layers and race-day movement
Long-distance races are rarely static. You take poles in and out. You add a shell. You remove a layer. You eat while climbing. You adjust the load without wanting to stop.
The Tabisuke Tabizo T2 Ultra 10 integrates the T2 Ladder Holder at the lower back, allowing poles or a shell to be secured without interfering with the running motion. The position is particularly interesting because it keeps poles accessible while avoiding the feeling of having them bounce around the back of the body.
This is where the vest starts to feel less like a simple storage solution and more like a system. The High Mount Fit, the BFS adjustment, the shell pocket, the ladder holder and the compression cords all point toward the same idea: keeping the runner free to move while the load stays controlled.
The intangible difference: standing apart
There is also something less measurable, but very real.
The Salomon S/Lab Ultra 12 is instantly recognisable. It belongs to the dominant visual language of modern trail running. It is a safe choice, a proven choice, and for many runners, probably the most rational one.
The Tabisuke Tabizo T2 Ultra 10 says something different. It suggests curiosity. It suggests distance from the obvious choice. It suggests an attraction to a more niche ultra-running culture — one shaped by craft, long-distance experience and a quieter form of identity.
Wearing Tabisuke Tabizo is not about being louder. It is about standing apart quietly.
For runners who care about the stories behind their equipment, this matters. A vest is not only a technical object. It is something you wear for hours, through fatigue, doubt, weather changes and low points. It becomes part of the way you move through the race.
That is why the T2 Ultra 10 feels different. Not because it tries to be the universal answer, but because it has a stronger point of view.
Tested on long distance: from design to real ultra conditions
We tested the Tabisuke Tabizo T2 Ultra 10 during Ultra-Trail Cape Town, where long hours, heat, changing layers, fatigue and mandatory gear quickly reveal whether a vest is only well designed — or genuinely usable deep into an ultra.
In this type of race, the details become obvious. The ability to adjust the fit while moving. The way the load stays high. The possibility to grab a jacket without removing the vest. The way flasks remain stable as they empty. These are not features that exist only on a product sheet. They are details that shape the experience hour after hour.
Modularity: waterproof inner bag and optional pouches
Another strength of the Tabisuke Tabizo T2 Ultra 10 is its modularity. The vest can be complemented with accessories designed around the same system, including the T2 Ultra 10 Waterproof Inner Bag and three different waterproof pouch sizes.
- T2 Ultra 10 Waterproof Inner Bag
- T2 Waterproof Pouch #1
- T2 Waterproof Pouch #2
- T2 Waterproof Pouch #3
This gives the vest a more adaptable character. Instead of being a fixed setup, it can evolve depending on the race, the weather, the amount of mandatory gear and the runner’s personal habits.
Why choose the Salomon S/Lab Ultra 12?
The Salomon S/Lab Ultra 12 remains an easy product to recommend for many runners. It offers a larger 12-litre capacity, comes with flasks, and sits within one of the most established performance ecosystems in trail running.
If you want the safest and most familiar choice, the S/Lab Ultra 12 makes sense. It is widely used, widely reviewed and immediately recognisable. For runners who do not want to overthink their gear and simply want a proven race vest, it remains a strong option.
Why choose the Tabisuke Tabizo T2 Ultra 10?
Choose the Tabisuke Tabizo T2 Ultra 10 if you want a vest that feels more personal, more distinctive and more intentional.
Its appeal is not only technical, although the technical side is serious: T2 High Mount Fit™ 2.0, BFS adjustment, elastic chest dampers, reverse-slant main storage, compression cords for flasks, rear shell access and the T2 Ladder Holder.
Its appeal is also cultural. Tabisuke Tabizo does not carry the same mainstream presence as Salomon, and that is precisely the point. It is for runners who want to move through ultra-distance with equipment that feels less expected and more aligned with their own way of running.
It is not the default choice. It is the chosen one.
Which one should you choose?
Choose the Salomon S/Lab Ultra 12 if you want the safest, most familiar reference: more volume on paper, flasks included, and a product already deeply associated with modern trail running.
Choose the Tabisuke Tabizo T2 Ultra 10 if you want a technical ultra-distance vest with a stronger point of view — something more distinctive, more adjustable and more aligned with a less conventional vision of long-distance running.
The Salomon S/Lab Ultra 12 is easy to understand: it is the obvious choice.
The Tabisuke Tabizo T2 Ultra 10 asks for a more deliberate decision. It is for runners who do not only want to carry their gear efficiently, but also want their equipment to say something about how they approach ultra-distance running.
Not louder. Not necessarily better for everyone. Just more intentional.
Shop the Tabisuke Tabizo T2 Ultra 10
Discover the Tabisuke Tabizo T2 Ultra 10 on Atmo, alongside selected accessories designed to complete the setup for long-distance trail running and ultra races.
FAQ
Is the Tabisuke Tabizo T2 Ultra 10 lighter than the Salomon S/Lab Ultra 12?
The Tabisuke Tabizo T2 Ultra 10 weighs approximately 240 g without accessories. The Salomon S/Lab Ultra 12 is announced by Salomon at approximately 205 g without accessories and 295 g with accessories. The comparison depends on whether flasks and additional accessories are included.
Are flasks included with the Tabisuke Tabizo T2 Ultra 10?
No. Flasks are not included with the Tabisuke Tabizo T2 Ultra 10, but the vest is compatible with standard soft flasks.
What makes the Tabisuke Tabizo T2 Ultra 10 different?
The Tabisuke Tabizo T2 Ultra 10 stands out through its High Mount Fit™ 2.0 system, BFS adjustment mechanism, rear shell access, ladder holder and distinctive Japanese ultra-distance philosophy. It is designed as a technical vest, but also as a more intentional alternative to mainstream ultra-trail equipment.
Is the Tabisuke Tabizo T2 Ultra 10 suitable for ultra-trail races?
Yes. The T2 Ultra 10 is designed for long-distance trail running and ultra races. It offers 10 litres of storage, multiple pockets, soft flask compatibility and optional waterproof accessories for race-day organisation.
Should I choose the Salomon S/Lab Ultra 12 or the Tabisuke Tabizo T2 Ultra 10?
Choose the Salomon S/Lab Ultra 12 if you want the most familiar and established reference. Choose the Tabisuke Tabizo T2 Ultra 10 if you want a more distinctive, adjustable and intentional ultra-distance vest.