Nnormal Kjerag 02 Review
The Nnormal Kjerag 02 ($195) is a minimalist, speedy trail shoe that feels more like a precision tool than a comfort cruiser. With its low stack, no insole, and sock-like Matryx upper, it delivers a locked-in “dancing shoe” ride that’s incredibly light and remarkably stable on technical terrain. Some runners will prize it for pure speed, from VKs to 100-milers (cough cough, Kilian), while others will treat it as a mountain weapon for off-trail lines where most trail shoes start to feel clumsy. The tradeoff is straightforward: underfoot protection is limited, hard surfaces can feel harsh, and the snug forefoot fit won’t work for everyone.
Cushioning
Responsiveness
Stability
Traction
Durability
Sustainability
Best for
High-performance
Weight
1 lb. 0.2 oz.
Stack height
26/20mm
Upper
Matryx (woven polyamide & Kevlar)
Midsole
Supercritical TPEE
Outsole
Vibram Megagrip Litebase (3.5mm)
Pros
Cons
Nnormal Kjerag 02
For this season's top models, see our guide to the Best Trail Running Shoes.
The Nnormal Kjerag 02 is a decidedly minimalist trail shoe, with 26 millimeters of stack in the heel and 20 in the forefoot (for context, the Hoka Mafate 5 sits at 45/37mm). Heck, it even eliminates an insole so that the foot has a more intimate connection with the ground. I’ve become a fan of max-cushioned shoes for the way they smooth out rough ground and add a little pillow-like forgiveness to each step, so the Kjerag’s stripped-down feel took some getting used to. On foot, it almost feels like a pair of dancing shoes: incredibly light and nimble, with just enough foam to take the edge off.
Where I struggled most in the Nnormal Kjerag 02 was on pavement and gravel paths near my house—terrain where I could get away with wearing a road shoe. On that kind of firm, repetitive surface, the Kjerag felt comparatively lifeless and under-supportive, and simply less fun than a max-cushioned alternative. In the same vein, it’s decidedly not a good recovery or long-distance shoe for mere mortals (on the other hand, Nnormal’s founder, Killian Jornet, took third at the Western States 100-miler in the Kjerag 02). Unless you’re an experienced runner who’s well-acquainted with minimalist footwear, you’ll want to stick to shorter distances in these shoes (or at minimum, ease into ultra distances). It’s so much more minimal than most modern trail shoes that your feet (and lower legs) may need a real ramp-up period to handle the added ground feel and reduced underfoot protection.
In steep, technical mountain terrain, the Kjerag 02 flips into its element. Whether it’s off-trail talus, boulder hopping, or rooty descents, the Kjerag’s sensitivity feels like a feature, not a compromise. As long as I'm not racking up too high of mileage, I’ll gladly take it scrambling in the mountains behind my house in Leavenworth, Washington. My feet feel more exposed, but I get a precise, dialed connection to the ground that reminds me of moving in climbing shoes.
The Kjerag 02 is designed for speed, so responsiveness is an essential element in this shoe. Responsiveness is generally a function of a shoe’s foam—whether it be a high-end player like TPEE or PEBA, or TPU or EVA infused with nitrogen—and a shoe’s plate, which can be made with carbon fiber or a plastic like TPU. Unlike many trail running shoes, the Kjerag 02 does not feature a rock or propulsion plate, but it does use supercritical TPEE midsole foam. The result is a surprisingly lively ride for such a minimally cushioned shoe.
In my experience, “nimble” is the better descriptor here than “propulsive.” The Kjerag 02 doesn’t give you that supershoe-style kick or the sensation of being launched forward; it feels more like a dancing shoe: springy and quick. You won’t feel like you have a spring underfoot, but even so, it’s about as far away from dull and ploddy as it gets. But I’ll be honest: Kilian Jornet taking third at Western States in this shoe is still mind-boggling to me—it’s hard not to wonder what he’d do in a shoe with a plate and even more supercritical foam.
The Nnormal Kjerag 02 operates like an extension of the foot, offering an incredibly stable ride. It starts with the fit: pulling up the stretchy, gusseted tongue is an experience everyone should have. It’s surprising and thrilling, creating a truly sock-like wrap that locks the foot in place. And no insole, your foot sits as close to the midsole and outsole as possible, which translates to a seriously low-slung, close-to-the-ground feel. Add in the lack of a rock plate or carbon/TPU plate, and the whole shoe leans into that “dancing shoe” vibe I keep coming back to—nimble, precise, and incredibly stable.
That stability shows up most clearly when the terrain gets spicy. I’ve worn the Kjerag 02 on rocky ridgeline traverses with boulder hopping, scree fields, and even short steps of 5th class, and it’s felt composed the entire time. Compared to higher-stack shoes or anything with plusher foam and more midsole tech, the Kjerag is refreshingly simple and planted, giving you the kind of control that makes technical movement feel intuitive rather than tentative.
Vibram Megagrip with Lightbase—need we say more!?
Jokes aside, the Kjerag’s traction is excellent. Without compromising the shoe’s ridiculously low weight, Normal made sure it had a full Megagrip Lightbase outsole from heel to toe. If you’re running smooth trails, you don’t necessarily need the full rubber outsole—high-performance shoes like the On Cloudultra Pro and Hoka Rocket X have a good deal of blown foam in their outsoles. But if you’re taking the Kjerag into rocky terrain or off-trail above treeline, you can’t do much better than its outsole. The 3.5-millimeter lugs perform decently on mud and snow, but the shoe shines on rock, where it’s almost approach-shoe-like in its stickiness.
One of Killian’s aims with Nnormal was to build durable products, guided by the belief that “The longer our products endure, the smaller our impact on the planet.” Thus, durability is one of the highlights of the Kjerag 02. The shoe features a durable Matryx upper, a long-lasting Vibram Megagrip Lightbase outsole, and a midsole designed to maintain its cushioning over time. The shoe has been put through the wringer on the feet of Killian and many others: One Nnormal study shows that most people should be able to run 1,000 to 1,200 kilometers (roughly 600 to 750 miles) before retiring the shoe. One of Better Trail’s testers has logged over 600 miles in the Kjerag and claims it's still going strong.
Of course, a shoe will only go for 600 miles if you make it. If you do end up with the Kjerag 02, I challenge you to extend its lifespan as long as possible. Nnormal offers a timeline of what to expect here. The shoe can even be resoled by any cobbler who uses Vibram (including Rock and Resole in Colorado). However, in our experience, the upper is not so indestructible that it can withstand a full second outsole’s worth of abuse.
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The Kjerag 02 weighs 15.1 ounces for the pair, which is ridiculously lightweight. Most trail running shoes check in over 1 pound, including the On Cloudultra Pro (1 lb. 3.4 oz.) and similarly sprightly Brooks Catamount 4 (1 lb. 3 oz.). I’ve used the term “dancing shoes” to describe the Kjerag throughout this review, and the shoe’s weight is a big factor in this. They feel feathery light and nimble, which is great news for fast uphill efforts or long days on foot.
The Nnormal Kjerag 02 uses a Matryx upper—a modern, high-tenacity woven material that blends tough synthetic yarns with technical fibers like Kevlar to deliver an absurd durability-to-weight ratio. In other words, it feels featherlight on foot, but it doesn’t give off that fragile, see-through vibe that some minimalist trail shoes do. On top of the Matryx is a firm toe cap and a thin reinforcement wrap around the perimeter where the upper meets the midsole/outsole. Combined, the shoe offers a slightly above-average amount of protection when brushing rocks or threading through talus—more than a gravel-minded shoe like the Mount to Coast H1, but less than the workhorse Hoka Mafate 5.
The tongue is a true highlight—the unpadded design operates very similarly to a sock, so much so that I can actually imagine wearing this shoe without one (although I’m not sure why I’d do so). Together with the snug, dialed-in wrap of the Matryx, the upper delivers excellent foothold for steep traverses, boulder hopping, and technical trail, while still staying impressively low-bulk, breathable, and quick-drying.
The Nnormal Kjerag 02 is one of the rare trail running shoes that comes in unisex sizing. In my experience, this doesn't put it out of reach for ladies (like many unisex products)—in classic European fashion, it actually runs on the very narrow side.
I’m typically a women’s size 8.5, and I’ll often size up to a 9 in long-distance running shoes. After reading that the Kjerag ran long, I stuck with an 8.5 women's/7.5 men's. In my estimation, the sizing is spot on, and I wish I had sized up to a 9, especially given the narrow toe box. My feet don't usually give me much trouble (the sleek La Sportiva Prodigio Pro works fine for me), but the Kjerag 02 is just a bit too tight up front for my relatively wide feet.
Sizing-wise, I’d recommend sticking with your standard size if you have normal- to low-volume feet, but sizing up if you’re wider in the forefoot or want extra room for swelling on long days.
Brooks Catamount 4 ($170): Fast and Firm
If you like the Kjerag 02’s speed-forward intent, it’s also worth considering the Catamount 4. While the Kjerag relies on supercritical foam for a nimble, energetic feel, the Catamount gets its pop from a TPE plate paired with a firmer, thicker foam. As a result, it’s more structured, more stable, and more protective, with less of that “dancing shoe” vibe of the Kjerag. And while the listed weights suggest a bigger separation, the difference was slight on our scale: our Catamount came in only 1.5 ounces heavier per pair than the Kjerag. The Catamount likely won’t match the Kjerag’s long-term durability thanks to its more traditional TPEE mesh upper, but it’s $25 cheaper, offers a more accommodating fit, and is the more approachable pick for runners who want a fast trail shoe without fully committing to a minimalist ride. For a deeper dive, read our Brooks Catamount 4 review.
La Sportiva Prodigio Pro ($225): Max Cushion, Maximum Fun
The Prodigio Pro is for runners who want speed and comfort in the same shoe. Compared to the Kjerag 02, it’s far more energetic and forgiving over long miles thanks to the significantly higher stack. The tradeoff is precision: even though the Prodigio Pro is impressively stable for a max-cushioned shoe, it can’t match the Kjerag’s sensitivity and control on truly technical, off-trail terrain. But if most of your running is on trail and you want one shoe that can handle everything from short runs to long races, the Prodigio Pro is the more versatile pick. For more, read our review of the La Sportiva Prodigio Pro.
The Kjerag 02 is a minimalist, ultralight trail shoe built for speed and precision on technical terrain. It offers a sprightly feel on smooth trails and is incredibly stable and grippy on rock. However, underfoot protection is limited, and the shoe runs snug in the forefoot.
Cushioning
Responsiveness
Stability
Traction
Durability
Sustainability
The Brooks Catamount 4 is a light, firm, fast trail shoe built for locked-in precision in technical terrain. It shines on steep climbs and rowdy surfaces thanks to its planted ride and sticky outsole. Just don’t expect plush comfort for ultra-long days.
Cushioning
Responsiveness
Stability
Traction
Durability
Sustainability
The La Sportiva Prodigio Pro is a rare do-it-all trail shoe. It boasts maximum cushion and is wildly energetic, yet genuinely grippy and stable. It's a high performer for just about any distance, speed, or terrain. Just be aware that the fit runs short and snug, and there’s no rock plate for extra underfoot armor.
Cushioning
Responsiveness
Stability
Traction
Durability
Sustainability
Is the Kjerag 02 for You?
If you want a trail shoe that feels like an extension of your foot, the Nnormal Kjerag 02 is a great option. It’s a minimalist, precision-first weapon with tons of ground feel, a sock-like foothold (thanks to the stretchy gusseted tongue and no insole), and best-in-class traction on rock. As a result, it’s a standout for moving at speed (think VKs or Cirque Series races) or for off-trail travel in the mountains. Or—if you’re Killian, it’ll help you run to third at the Western States 100 (eyeroll emoji).
The Kjerag 02 is not for you if you’re chasing a plush, protective, max-cushioned experience or you spend a lot of time on pavement and gravel. With just 26/20 mm of stack, no rock plate, and lots of ground feel, it can feel harsh and unsupportive on hard surfaces, and it won’t give you that effortless stride you get from modern max-cushioned shoes. It’s also a snug shoe in the forefoot; runners with wider feet may want to size up.
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