The Altra Lone Peak 9+ Man is the latest evolution in Altra’s iconic trail running series, designed for runners who demand zero-drop geometry, natural foot movement, and rugged trail performance. Known for its foot-shaped design and wide toe box, the Lone Peak line has long been a favourite among thru-hikers, ultrarunners, and trail enthusiasts. With the 9+ version, Altra introduces a key upgrade: the Vibram Megagrip outsole, enhancing traction and durability for technical terrain.
This model continues Altra’s commitment to natural running mechanics while refining the shoe’s grip, protection, and fit. Whether you’re navigating muddy singletrack, rocky ascents, or long-distance trails, the Lone Peak 9+ aims to deliver comfort and confidence in every stride.
Design and Construction
The Lone Peak 9+ retains the signature Altra silhouette, with a foot-shaped toe box that allows toes to splay naturally. This design reduces pressure on the forefoot and enhances stability, especially on uneven terrain. The upper is constructed from a durable ripstop mesh that balances breathability with abrasion resistance. Reinforced overlays provide structure without compromising flexibility.
One of the standout features is the upgraded Vibram Megagrip outsole, replacing the previous MaxTrac rubber. Vibram’s compound is known for its superior grip on wet and dry surfaces, making the 9+ a more capable performer in slippery conditions. The lug pattern is aggressive, with multi-directional 5mm lugs that shed mud and bite into loose terrain.
The shoe includes a StoneGuard insert, a flexible rock plate that protects the foot from sharp objects without sacrificing ground feel. GaiterTrap technology remains in place, allowing runners to attach Altra’s proprietary gaiters for added protection against debris.
Fit and Comfort
Altra’s commitment to anatomical fit is evident in the Altra Lone Peak 9+ Man. The shoe offers a roomy toe box, medium-volume midfoot, and secure heel cup. This combination accommodates foot swelling during long runs and provides a stable platform for technical descents.
The zero-drop platform, with equal stack height in the heel and forefoot (approximately 25mm), encourages a natural gait and midfoot strike. While this design may require an adjustment period for runners used to traditional shoes, it promotes better posture and reduces heel-striking tendencies.
The midsole is made from Altra EGO foam, offering a balanced feel between responsiveness and cushioning. It’s not overly plush, which benefits runners who prefer ground feedback and agility. The shoe weighs approximately 11 ounces (312 grams), making it lightweight enough for trail running but substantial enough for hiking and backpacking.
Performance on the Trail
The Lone Peak 9+ excels in varied trail conditions. The Vibram Megagrip outsole significantly improves traction on wet rocks, roots, and loose gravel. Runners report increased confidence during technical descents and muddy climbs, where previous versions struggled.
The StoneGuard insert provides effective protection without making the shoe feel stiff. It flexes naturally with the foot, allowing for smooth transitions and responsive movement. The midsole’s moderate cushioning supports long-distance efforts without feeling bulky or unstable.
On dry hardpack trails, the shoe maintains excellent grip and comfort. On wet terrain, the Vibram outsole shines, offering reliable traction that rivals more aggressive trail shoes. The breathable upper helps regulate temperature, although some users note that it retains moisture in heavy rain.
The zero-drop geometry encourages a more engaged stride, which can reduce fatigue over long distances. However, runners new to zero-drop shoes should transition gradually to avoid calf strain or Achilles discomfort.
Durability and Longevity
Durability is a key strength of the Altra Lone Peak 9+ Man. The ripstop mesh upper resists tearing and abrasion, even in rocky environments. The reinforced overlays and toe bumper protect against scuffs and impacts, while the Vibram outsole shows minimal wear after extended use.
The midsole retains its shape and cushioning over time, with no significant compression or breakdown reported after 50+ miles of testing. The StoneGuard insert remains effective, and the lugs maintain their depth and grip.
Some users have noted minor issues with the upper’s breathability in humid conditions, and the shoe may feel warm during summer runs. However, for all-season use, the Lone Peak 9+ offers reliable performance and protection.
Pros and Cons
Pros
- Vibram Megagrip outsole provides superior traction on wet and dry terrain
- Zero-drop platform promotes natural running mechanics
- Foot-shaped toe box enhances comfort and stability
- StoneGuard insert offers effective protection without stiffness
- Lightweight and versatile for trail running and hiking
- Durable ripstop upper with reinforced overlays
- GaiterTrap compatibility for added debris protection
Cons
- Slightly heavier than some competitors
- Breathability could be improved for hot climates
- Zero-drop geometry may require adaptation for new users
- Premium price point compared to previous versions
Comparison with Previous Models
The primary upgrade in the Lone Peak 9+ is the Vibram Megagrip outsole. This change addresses one of the most common criticisms of the Lone Peak 9, which used Altra’s MaxTrac rubber. While MaxTrac offered decent grip, it lacked the stickiness and durability of Vibram, especially in wet conditions.
Other aspects of the shoe remain consistent with the Lone Peak 9, including the EGO midsole, StoneGuard insert, and foot-shaped design. The 9+ does not introduce major changes to the upper or fit, making it a familiar experience for existing Lone Peak users.
The price increase of approximately £15–£20 reflects the premium outsole, and most users agree that the upgrade is worth the investment for improved performance and longevity.
Ideal Use Cases
The Altra Lone Peak 9+ is ideal for trail runners, ultramarathoners, and hikers who prioritise natural movement and reliable traction. It performs well in technical terrain, muddy trails, and rocky paths, making it suitable for mountain running and long-distance adventures.
Its zero-drop platform and wide toe box make it a favourite among runners with foot issues such as bunions or plantar fasciitis, as it allows for better alignment and reduced pressure. The shoe is also popular among thru-hikers on trails like the Appalachian Trail and Pacific Crest Trail, where comfort and durability are essential.
For casual trail runners or those new to zero-drop shoes, the Lone Peak 9+ offers a smooth transition with its balanced cushioning and responsive ride.
Final Verdict
The Altra Lone Peak 9+ Man is a refined trail shoe that builds on the strengths of its predecessors while addressing key performance gaps. The addition of the Vibram Megagrip outsole elevates its traction and durability, making it a more capable choice for technical terrain and adverse conditions.
Its anatomical fit, zero-drop geometry, and protective features make it a versatile option for runners and hikers alike. While it may not suit every runner’s preferences, especially those who favour traditional heel-to-toe drop, it remains a top contender in the zero-drop trail shoe category.
For athletes seeking a natural ride, reliable grip, and long-distance comfort, the Lone Peak 9+ delivers on all fronts.
