The Mammut Aenergy Trail Endurance Ultra is a new trail running shoe for 2026 designed for long distance running over technical terrain. However, I tested this running shoe as a hiking shoe because I've found that trail runners built for endurance often handle hiking better than the typical trail running shoe. My Mammut Aenergy Trail Endurance Ultra review is based on approximately 40 miles of first-hand hiking experience in New Mexico's Sandia Mountains.
Testing the Mammut Aenergy Trail Endurance Ultra outside Albuquerque, New Mexico
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Mammut Aenergy Trail Endurance Ultra Review
To test the Mammut Aenergy Trail Endurance Ultra, I subjected my test pair to half a dozen hikes outside Albuqueque—from speed hikes in Bear Canyon to fitness hikes on the Piedra Lisa Trail to harder hikes in Embudito Canyon with more than 3000 feet of ups and downs. As always, this review is 100% independent and based on my first-hand hiking experience. Plus, you can trust my takes because I'm the former footwear manager at Appalachian Outdoors and Gearhead® Expert at Backcountry—a leading outdoor specialty retailer.
Testing the Mammut Aenergy Trail Endurance Ultra on mixed terrain
Support
I inherited bad feet and ankles from my Dad, but I haven't had any issues during my test hikes in the Aenergy Trail Endurance Ultra. Since Mammut made this shoe for endurance runs on technical terrain, it approaches the support of several lightweight hiking shoes.
There's moderate flex at my feet's natural flex point, which equates to moderate midfoot support. The Trail Endurance Ultra also resists twisting, thanks to a light plate sandwiched between its soles. This torsional rigidity protects against rolling an ankle over a rock, root, or angled trail that puts pressure on your outer ankle.
The Aenergy Trail Endurance Ultra is a low-cut—and made for running, not hiking. But its Ultra-build comes with some added support by trail runner standards. I didn't come home with sore feet or swollen ankles after 40 miles of test hikes, some of which took place on moderate to difficult trails.
My size 13 Trail Endurance Ultras weighs 13 ounces per shoe
Weight
The Mammut Aenergy Trail Endurance Ultra weighs a couple ounces more than most trail runners I've reviewed. But it's still lightweight by hiking shoe standards. My pair (men's size 13) weighs 1 lb 10 ounces. That's 8-10 ounces less than the average hiking shoe.
Among the trail running shoes I recommend for hiking, the Aenergy Trail Endurance Ultra makes the most sense for hikers who prefer a sturdier and more cushioned trail shoe to an ultra-lightweight one.
Fit
I've personally owned four different Mammut trail shoes and get the best hiking fit by sizing up one full size from my everyday shoe size. When sizing up, I get good width in the forefoot and toe box. Overall, I call this a standard but roomy fit.
Max Cushion makes the Aenergy Trail Endurance Ultra comfortable
Comfort
Ultimately, a shoe's comfort depends on fit, your hiking style, and your personal preferences. That said, the Mammut Aenergy Trail Endurance Ultra has a lot going for it in the comfort department.
The first thing I noticed while testing this shoe was its cushioning. I enjoyed its light and responsive foam midsoles, which meet my definition of a "max cushion" shoe with 38mm of foam under the heel and 30 mm at the toes.
The Trail Endurance Ultra's middle-of-the-pack support provided enough of a backbone for my lower body to stay comfortable on hikes up to 8 miles (3250' elevation gain).
If you prefer ultralight footwear, you won't feel as fleet-of-foot in this shoe as you will in some of the trail runners I recommend for hikers. It runs 3-4 ounces heavier than several I've tested and reviewed. But you'll probably find it comfortable if you prefer trail runners with a little more cushioning and support.
This shoe is well ventilated for desert day hikes
Weather Protection
Like most trail runners, the Mammut Aenergy Trail Ultra is not waterproof. It's made to balance foot protection and ventilation for moving quickly over technical terrain. That said, its high stack height (38/30mm of cushion) and light rand around the shoe did provide over an inch of water clearance when I stepped through puddles of snowmelt in Domingo Baca and Embudito Canyon.
Overall, though, this shoe is not built to keep your feet dry on sloppy trails or snowy runs.
Testing traction on solid rock in Embudito Canyon
Traction
Traction was the second thing I noticed when I tested the Mammut Aenergy Trail Endurance Ultra outside Albuquerque. This shoe's tread handled mixed terrain without raising any big red flags for traction. On slickrock sections of Embudito and Domingo Baca Canyons, I didn't have any noticeable slips on the smooth granite slabs that feel slick in some of my trail shoes. Plus, the lugs had decent bite on loose gravel and scree that can be slippery, especially on steep descents. I could move quickly over rough rock.
The outsoles of the Trail Endurance Ultra are made of Vibram Megagrip—arguably the best rubber for wet/dry traction on the market.
Women's Aenergy Trail Endurance Ultra
Value
If you haven't noticed, footwear prices have skyrocketed in 2026. The non-waterproof Aenergy Trail Endurance Ultra has a MSRP of $199. It's not the most expensive trail runner I've tested, but it's up there. It's also available in a GORE-TEX ("GTX") model if you want a waterproof trail running shoe for $40 more. At least you're getting premium performance for that premium price.
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Men's Aenergy Trail Endurance Ultra
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Women's Aenergy Trail Endurance Ultra
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Pros vs. Cons: Mammut Aenergy Trail Endurance Ultra
After 40 miles of test hikes, the Mammut Aenergy Trail Endurance Ultra demonstrated more pros than cons:
Should you buy the Mammut Aenergy Trail Endurance Ultra?
If you're a hiker who prefers a supportive and highly cushioned trail running shoe to an ultra-lightweight one, you should definitely give the new Aenergy Trail Endurance Ultra a look. I found it highly comfortable and extra-grippy on my test hikes, and it weighs a few ounces less than Mammut's hiking shoes (which I also like). The biggest downside is price: $200 is steap for a trail running shoe. But I'll be adding this new trail shoe for 2026 to my list of the best trail running shoes for hikers (to replace the Mammut Sertig—which is now a hiking shoe (not a trail runner)—and a good one.)
If you're feeling the new Trail Endurance Ultra, please consider picking it up from the links in this post. If you click on those buttons and buy something, the retailer may share a few bucks of the sale with Hiking Feet—at no cost to you.
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Men's Aenergy Trail Endurance Ultra
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Women's Aenergy Trail Endurance Ultra
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