Altra - Mont Blanc Speed
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Based on 1 year's data from Mar 17, 2026 How it works
Liked most:
5
0
"did the first 50 miles in my lone peaks and the last 75 miles in the Mont Blanc speeds. No issues. ... They worked great though out there."
"I use them all the time on thru hikes and hiking in the Lake District."
"I've put over 2000 miles into a couple pairs of Altra runners."
10
0
"The EGO Max foam they're using in the midsole is unbelievable. ... Incredibly comfortable with an extremely lively response."
"As far as the width, they are roomy but not as roomy as the LP (nothing really is). But I had plenty of room for my swollen feet after 125 miles."
"until another company comes out with a wide toe box and no arch support trail runner it’s altra all the way for me. ... I had to immediately return them due to their pronounced arch support. My feet hated them"
8
3
"Every blue moon I roll an ankle but that’s because of tough terrain, not boots, and I’ve never injured my ankles in the process."
"The frequency of my ankle rolling went way down. ... I have been wearing altras as everyday wear for almost 3 years and have maybe rolled my ankles 3 times over that time frame."
"No feet or toe issues."
2
0
"Breathability…I ran the last 75 miles of Sedona canyons 125 in May in Arizona with them (and gaiters) and with the Balega hidden comfort socks and never thought my feet couldn’t breathe. It never crossed my mind."
"My shoes thankfully dried out and were never a problem again."
6
1
"Vibram mega grip which is really sticky and gives you confidence."
"The slim and grippy sole makes them extremely safe in scree and rocky terrain."
"Gone through s lot of scree with them."
Disliked most:
1
4
"they begin to fall apart after 200 miles. ... these shoes often don't last a year at the rate I use them. ... I put in a warranty claim regularly because these shoes often don't last a year at the rate I use them."
"Altras are good, but I destroy them in about 300 miles. ... Though Altras kind of suck for durability (expect 300 miles unless they fixed things)."
"Altras are good, but I destroy them in about 300 miles. ... Though Altras kind of suck for durability (expect 300 miles unless they fixed things)."
3
3
"the change was very noticeable on trail running. ... Calf and Achilles soreness galore."
"Go with Altras if you dont mind your achilles blowing up ... zero drop shoes work for some ppl for sure but they have blown up far more achilles than theyve helped ppl. The barefoot running crazy that stemmed from Born To Run got many of us. Myself included."
"Go with Altras if you dont mind your achilles blowing up ... zero drop shoes work for some ppl for sure but they have blown up far more achilles than theyve helped ppl. Myself included."
1
1
"There was a lot of rain on Day 1, and my shoes were so wet that I they were still damp when I started on Day 2."
"There was a lot of rain on Day 1, and my shoes were so wet that I they were still damp when I started on Day 2."
Fizzywater10 1.02x altra lone peaks. 2x topo mtn racer 3s. 1x altra Mont Blanc speeds. 1x MTC H1s. 1x altra vanish tempo. 1x topo specter 2. Still using 4 of those but a couple are pretty close to dead. ~2500 miles.
Absolutely. I got the MBS specifically for a super technical 100 miler. They performed great got through the whole race with minimal foot issues. They are however not that durable showing significant wear after ~200 miles. really liked the mtn racers but they started biting my feet on the inside edge after awhile so I’m out on those now. I also considered prodigio pros but never tried them on due to the same width concerns. If your race is not muddy or loose rocky I’d also recommend H1s. I haven’t taken them on anything super technical yet but am liking them a lot. ~300 miles on em in 2 months including a 40 mile race in the snow.
HammertimePT1855 1.0If you wear wide Lone Peaks, then you are stuck with what you have currently. I am in the same boat as you and the LP9+ are my daily driver. I use the Mont Blanc Speed for intervals or more uptempo workouts but had to switch to elastic Lock Laces for more volume and get used to my midfoot spilling over the medial arch (my brain has forgotten about it after a month or so).
mw_19 1.0Sleeper shoe that is super versatile is the Altra Mont Blanc Carbon … can do it all and it’s a much snugger fit then most altras and durable … I run east coast terrain and 100k ultras in them. They have a new Mont Blanc Speed without carbon that’s a bit softer but not as propulsive…
Ok-Original2510 1.0I run in Altra lone peaks and have been for about 7 years. I have recently added the new Altra Mont Blanc speed into my rotation. I just ran and finished the Sedona canyons 125 and did the first 50 miles in my lone peaks and the last 75 miles in the Mont Blanc speeds. No issues.
In May I ran and finished the Sedona Canyons 125 (back half of cocodona 250). I ran the first 50 miles in the Lone Peak 8 and the last 75 miles in the Mont Blanc Speed. The MB speed has a stack of 29mm which is 4 mm higher than the LP. Was nice to have a little more cushion for the later miles. No feet or toe issues.
All solid trail shoes for sure. Maybe it’s the socks. I run in Altra Lone Peak. And have recently added Altra Mont Blanc Speed (it’s a newer shoe). And Balega Hidden Comfort socks. REI is an outdoor retailer here in the States. I know wool is good but it never work for me. Balega uses nylon and synthetics and polyester. It works for me. Wool causes my feet to slide in the shoe.
Congrats! I was also there, and finished! It did take me a bit longer than you though, about 10 hours longer. Your recap is spot on for description of each section. Unfortunately I did have to navigate Hangover in the dark and it sucked. Course markings on Hangover were a little sketchy and then add in darkness, it was tough. But overall I agree with everything you said. I felt the same in just about every way you did. It was pretty amazing out there. I ran in LP 8s for a while too. Then switched to the Mont Blanc Speed.
Prestigious-Eye3154 1.0I just bought a pair of these and I noticed the fabric on the insoles was already peeling on the edges, brand new out of the box. Seems like an ill omen for long term use.
purr_ducken 1.0Great shoe but it'll beat your feet up on a hundo if you're not accustomed to it. I recommend Mont Blanc Speed or new Timp.
titan_master_class43 1.0I just took a picture of my MBS ripping in the exact same spot. Only 200 miles. Wish altras would last longer
where_other_sock 1.0I’ve been running in Altra trail shoes for several years now after switching over from Salomon S Labs (they were getting to hard to find). The Lone Peak was my go-to, and I often saw folks writing about them falling apart. I never had an issue… until I decided to try and “upgrade” to the Mont Blanc speed in April. Yesterday mid run the whole side tore out!! Fortunately I got them at REI, and I will see if I can return/exchange them. I love the Altra toe box, and the gator ready design of the shoe - but I’m now worried about going back to the Lone Peak!
Think-Geologist-1244 0.5Same thing happened to my speeds at just over 200 miles, REI took them back. I've been in Altra for a few years but starting the transition to something more durable. I'd get 200 miles out of most pairs and they'd either fall apart or I'd start to get these little injuries.
yetiblue1 0.5You’d be hard pressed to find another shoe that is faster and as wide. Best suggestion would be to get the FKT insoles from Topo for a bit more energy return and get faster ™️ Or potentially the Altra Mont Blanc speed/carbon. They’re pricy though and potentially not enough volume. They do run faster than anything Topo has atm
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