Choosing the right running shoe is essential for comfort, performance, and injury prevention—especially as warmer weather invites more time outdoors. With longer days and sunnier miles ahead, spring and summer are the perfect seasons to reassess your current footwear and consider a fresh upgrade. Our team of experienced runners has tested the latest models to help you find the ideal shoe for your warm‑weather runs.
This guide offers a detailed look at the top running shoes available this spring and summer. We break down our hands-on testing process and explain why investing in quality, season-ready footwear can elevate your entire running experience. Inside, you’ll find clear, easy-to-follow insights to help you choose a shoe that matches your running style, goals, and the miles ahead.
Why Trust Us?
ACTIVE.com's editorial team relies on the knowledge and experience of fitness and wellness experts, including competitive athletes, coaches, physical therapists, nutritionists, and certified trainers. This helps us ensure that the products we feature are of the highest standard. Collectively, the team has spent countless hours researching equipment, gear, and recovery tools to create the most accurate, authentic content for our readers. Customer satisfaction is also a key part of our review process, which is why we only feature highly rated products.
Mammut Aenergy Trail Speed Low
The Mammut Aenergy Trail Speed Low is built for runners and fast movers who prioritize efficiency, agility, and precision on technical trails. Lightweight and responsive, this low‑cut trail shoe is designed to feel quick underfoot while maintaining the protection and grip needed for rugged terrain. It’s a go‑fast option for athletes who want to cover ground confidently without being weighed down.
At $169, the Mammut Aenergy Trail Speed Low offers some of the best bang for the buck in a trail shoe. They’re nylon-plated, ultra light, and fast.
First Impressions:
Out of the box, I’m blown away by how light these are. I wouldn’t say that they’re deceptively light because they do look lean and mean, but these are lighter than many of the elite racing shoes that have a 100 dollar higher price tag. I’m also pleasantly surprised with the overall look of this shoe. For a brand that most Americans probably aren’t familiar with, Mammut has created a sexy trail shoe that’s visually appealing.
Getting the shoes on my feet isn’t the easiest. They have an integrated sockliner design for a slip-in fit, but it’s definitely an effort to squeeze into them. I’m genuinely concerned that I’m going to rip the pull tabs on the top and heel from the force that I’m using to pull them up. I wouldn’t want to be in a trail triathlon with these where I’m being timed in transition. With that said, once they’re on my feet, they are comfortable, and the fit is super secure.
The mesh on the uppers is lightweight and breathable, and the integrated sockliner means that there isn’t a bulky tongue that’s limiting heat dispersion.
They’re quite fast. They have a nylon-based plate to aid in propulsion, and my turnover felt quick and easy. I love that they’re using Vibram outsoles here, but these are very low-profile lugs. These shoes are definitely best suited for dry trails.
Things We Liked:
The weight. These are surprisingly light. In fact, they’re lighter than my current trail racing super shoes!
Areas for Improvement:
The weight. These are surprisingly light. In fact, they’re lighter than my current trail racing super shoes!
Final Thoughts
While Mammut may not be a household name in the U.S., the Aenergy Trail Speed Low certainly deserve some attention as they feature high-quality specs that are comparable to higher-end racing shoes, while also ringing up at a reasonable price point of $169.
At only 8.8 oz (US Men’s 9.5), the Trail Speed Low are some of the lightest trail shoes on the market. They feature a one-piece mesh upper for a slip-in fit that provides a secure lockdown. The multi-layered midsole includes their nylon Flextron Pro plate to provide propulsion. One benefit of a flexible nylon plate versus the more rigid carbon plates that are now standard in most super shoes is that the nylon plate can flex and contour, which can be critically important for a shoe that needs to bend itself around rocks and roots. Their lightweight Mammut Core Plus foam complements the plate for a ride that encourages quicker turnover and aggressive paces on the trails. These are designed with the Vibram Litebase outsole with grippy rubber; although, the lug depth is shallow so they’re best suited for dry conditions or situations where the route may transition from trail to pavement frequently.
“Speed Trainer” is a term that is typically used for road shoes, but Mammut may have just created one for the trail with the Aenergy Trail Speed Low as these are excellent shoes for fast training runs on the trail or shorter trail races. For longer trail racing, Mammut does offer a sister shoe to this model, the Aenergy Trail Ultra Low that uses a similar plate, upper, and foam, but with a slightly higher stack for comfort.
Specs:
- Drop: 6mm
- Weight: 7.0 oz (women US 7); 8.8 oz (men US 9.5)
- Price: $169
- Category: Neutral
- Type: Running - Trail
- Fit: True to Size
- Ideal for: Trail
Buy:
Women's | Men's
Mammut Aenergy Trail Endurance Ultra Low
The Mammut Aenergy Trail Endurance Ultra Low is designed for long distances, long days, and runners who demand consistency from start to finish. With a focus on sustained comfort, stable cushioning, and dependable traction, this shoe is built to handle ultra‑length efforts and varied terrain without breaking stride. It’s a trail companion made for endurance—supportive, protective, and ready to go deep into the miles.
It’s a dependable all-weather trail shoe that stays stable, protective, and responsive no matter what mother nature and the trail throws at it.
First Impressions:
I was surprised how much I liked this shoe compared to other styles from them. I really liked the design of the heel and the mesh upper. it kept out the mud while still being flexible and breathable. I also liked the propulsion of the carbon plate. the cushioning is placed well under the forefoot-- just enough to stay comfortable but not sink. it's a pretty responsive shoe and the carbon plate was pretty comfortable and flexible compared to other brands where you feel it because it's not forgiving. The fit was nice and compact in the midfoot and still roomy but not extra wide in the toe box. The 10k in the dry dirt was fast and pretty nimble for the weight and stack.
Things We Liked:
The vibram grip. I ran mostly in extremely muddy conditions and while my mates kept falling, I was able to stay upright! I can see where they would work in a mountainous terrain that still had dirt and gravel. you could easily transition with the cushioning it provides
Areas for Improvement:
Reinforce the toe a bit more. Since it was muddy, i did not kick roots but if I had I think I would have felt them. Also, adding a little more cushion at the heel would be nice if really wearing them for longer than a 50k
Final Thoughts
From winding trails to more technical mountain terrain, the Mammut Aenergy Trail Endurance Ultra Low (GTX) is built to go the distance. Designed for mid- to long-distance efforts, it blends protection, grip, and forward drive in a way that feels capable without becoming overly rigid. With its lightweight design it strikes a balance between cushioning and control for extended time on the trail. The overall design reflects Mammut’s mountain-first approach. This is a shoe built with durability in mind, from the 360° TPU reinforced toe cap that protects against rocks and debris to the structured upper that holds up in wet conditions. Despite that protection, the shoe avoids feeling overly bulky and maintains a relatively streamlined profile.
Underfoot, the ride is cushioned but controlled. The dual-density midsole combines Mammut CORE Ultra™ foam with CORE Plus™ foam, delivering a balance of softness and rebound. The CORE Ultra layer adds lightweight cushioning, while CORE Plus increases responsiveness and energy return, helping the shoe feel efficient over longer distances. There’s also a smooth rolling sensation through each stride, driven by the rocker profile and supported by the Flextron® PRO propulsion plate, which adds a subtle forward push while maintaining torsional stability. This creates a smooth, rolling transition that keeps momentum steady without feeling forced.
Grip is a clear highlight. The Vibram Litebase Megagrip outsole with 4 mm lugs provides reliable traction across a wide range of surfaces. On dry trail, it feels stable and predictable, and in wet or muddy conditions, the grip holds strong without slipping or feeling overly aggressive underfoot. It bites into softer ground just enough to hold but still allows smooth movement forward so you don’t get bogged down: a great feature because no one wants to be the runner slipping, sliding, or getting stuck when the trail turns soft and unpredictable.
Stability is handled with a combination of structure and fit. The platform feels grounded with a relatively flat base, while the Base Fit technology secures the midfoot for added support. In the rear, memory foam heel pods help lock the foot in place, creating a stable, confident feel on uneven terrain. The slightly tapered heel design also helps avoid catching on roots or rocks, keeping transitions smooth.
Comfort holds up well over distance. Cushioning under the forefoot is noticeable—an area often overlooked in more rugged trail shoes—helping reduce fatigue during longer efforts. The upper uses a breathable mesh construction, paired with a GORE-TEX Invisible Fit membrane that provides waterproof protection while maintaining a natural, flexible feel. Even in muddy conditions, the upper sheds debris well and limits moisture intrusion. Compared to some traditionally rigid mountain shoes, the Aenergy Trail Endurance Ultra Low stands out for maintaining flexibility alongside protection. It feels stable and durable but still allows for a natural stride and a sense of speed when needed.
The Aenergy Trail Endurance Ultra Low (GTX)handles demanding terrain while keeping the run controlled and consistent. It moves efficiently, making it a strong option for endurance-focused trail running. This shoe is best suited for runners looking to go longer on mixed or technical trails, where grip, protection, and sustained comfort matter most.
Specs:
- Drop: 8mm
- Weight: 9.8 oz (women); 11.6 oz (men)
- Price: $199
- Category: Stability
- Type: Running - Trail
- Fit: True to Size
- Ideal for: Long Distance, Trail
Buy:
Women's | Men's
Our Comprehensive Testing Process
To bring you this guide, our expert team, comprised of seasoned runners and footwear specialists, conducted extensive testing on a wide array of shoes. We are committed to providing reliable and unbiased recommendations based on real-world performance.
Each pair of shoes was subjected to a minimum of 20 miles of running across varied terrains, from city pavements to park trails. Our testers meticulously evaluated each shoe based on a set of key criteria to ensure a thorough and balanced assessment.
Key Evaluation Criteria:
- Comfort: We assessed the initial feel and long-run comfort, noting any pressure points or areas of discomfort.
- Fit: Testers evaluated how the shoe conformed to the foot, including the security of the heel, the width of the toebox, and the overall lockdown.
- Weight: We considered the physical weight of the shoe and how it felt during a run—whether it felt light and nimble or heavy and cumbersome.
- Breathability: The upper materials were tested for airflow to determine how well they managed heat and moisture during a run.
- Flexibility: We analyzed the shoe's flexibility in the forefoot and its overall ability to move naturally with the runner's stride.
- Overall Ride: This is a comprehensive assessment of the shoe's performance. It includes the quality of the cushioning, the smoothness of the heel-to-toe transition, and the general feeling of the shoe in motion.