Vivobarefoot - Primus Trail FG 3.5 Mens
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Reddit Reviews:
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Based on 1 year's data from Mar 17, 2026 How it works
Liked most:
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"a great all-rounder for travel adventures ... meets everything else"
"I mainly hike with [barefoot] trail runners and have never looked back."
"I’ve climbed mountains in vivos. ... grassland to snow back to grassland over kilometres of elevation type of climbs ... it’s so much better than thick stiff hiking boots."
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"nothing beats underfoot feedback when it comes to feeling secure on scree and wild rock"
"My ankles became pretty strong and never roll, even compared to other regular-mobile people."
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"I can put 4 rounds on my feet and my feet will be the least sore part of me walking off the course."
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"they also helped strengthen my feet to where I can spread out my pinky toes ... they do help strengthen foot muscles that don't get used with normal shoes"
Disliked most:
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"It was a total disaster. ... By mile 13, the soles of my feet were two giant blister cushions. ... I hobbled out the next day nearly crying from pain and hitched home, utterly defeated. ... Turns out padding and isolation from scorching hot jagged/sloped black basalt surfaces is important."
"I used to wear Vivos on the trail. I do think I’m able to go farther and without sore feet with some cushion."
0
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"It was a total disaster. ... By mile 13, the soles of my feet were two giant blister cushions. ... I hobbled out the next day nearly crying from pain and hitched home, utterly defeated. ... Turns out padding and isolation from scorching hot jagged/sloped black basalt surfaces is important."
"I used to wear Vivos on the trail. I do think I’m able to go farther and without sore feet with some cushion."
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"I used to wear Vivos on the trail. I do think I’m able to go farther and without sore feet with some cushion."
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"The Vivo Primus FG don't have good traction in the wet."
bigtoepfer 1.0I've got the same FG3.5 and was concerned about my size being one two big. But after a week in the mountain I think I picked the right one. They just seem so different from my Primus Lite that its hard to compare. The primus lite are probably my favorite shoes I've ever had at this point. But sad the sole is getting worn out after a year.
Careful-Plum-8825 1.0The FG sole is a true swiss army knife! Can recommend.
have had both, currently the knit, find the knit a bit heavy and less "good looking" but very easy to put on. I would buy the regular and put on stretch laces. as the lawyers say, there is a specialist for every opinion.
Mickoreddit 1.0Get black primus trail 3.5. They’ll do most scenarios. People that bitch about the laces need to get a grip. Cut them if they’re too long.
MTBisLIFE 1.0Kinda side-stepping your convo, but how do you like the Primus Trail Knit? I have a pair of the Primus Trail FG 3.5, but still within the 100 day trial and definitely ordered a size too small.
StoicKoal 1.0I mainly hike with [barefoot](https://vivobarefoot.com.au/collections/mens/products/primus-trail-fg-3-5-mens-dark-shadow?variant=46345330163929) trail runners and have never looked back.
WhereIEndandYoubegin 0.5Yup. I have Primus lite 3’s, and the Primus trail 3’s and love them both. Probably wear the lite 3’s the most though because they’re great with concrete and the trails are better for turf. I myself like less tread on concrete pads as the trail tread is almost too grippy for that.
Yup. I have Primus lite 3’s, and the Primus trail 3’s and love them both. Probably wear the lite 3’s the most though because they’re great with concrete and the trails are better for turf. I myself like less tread on concrete pads as the trail tread is almost too grippy for that.
defensetime 0.3One way to make them last is to only wear them on trails. Wear a different pair of shoes getting to/from the trail. Never wear them walking around the city. The Xero Scrambler Low which are a bit thicker than you mentioned but have the nice Michelin sole. I'm a big fan and do my long runs in these. The Vivo Primus FG don't have good traction in the wet. They're also oddly stiff for the thickness and overall I just don't like running in them. VFF are thinner than you requested, but have awesome Vibram soles. Being able to push down with your toes (like a claw) gives you an amazing grip option other shoes don't. For shorter runs, they feel the best. You can easily find VFF on sale or on ebay for well under $100.
erlendlh 0.3Lite III and Trail FG is all you need. (Except during winter and snow. I have had near frost damage situations because of using Vivos in sub-zero Celsius temps, so in winter i use «normal» winter shoes.)
longwalksinthedark 0.3Same shoes and socks all year. Vivo barefoot Primus Trail FG (firm ground) not the SG (soft ground). Thin wool blend aocks. Maybe some gators if it's a long run. Try to avoid the puddles for a few minutes until you fully dunk your foot. Then say fuck it and just got straight thru the puddles. If you want to stay clean and dry, stay inside.
papaoftheflock 0.3Plus one for the Primus Trail FG - best low-profile trail running shoe by far and a great all-rounder for travel adventures - may be too sporty/rugged for nice dinners but meets everything else. Anything barefoot style will keep it low profile. I'd pair vivo's and whitin's canvas shoes for my offroad/hiking needs vs my city walking/more dressy occassions.