TerraFlex II - Trail Running and Hiking Shoe - Men

Q: What do I do with those Straps on the TerraFlex?

This is one of my favorite features in the TerraFlex . The huarache-sandal inspired heel strap can be used to hold your heel and ankle in place. Pull the straps through the ankle holes in the sole, and then lock them in place with the laces. The instep straps can be used to secure your instep, which can free up your toes and forefoot to relax and function better. Use the laces to tighten or loosen them to your liking.

Q: How do I send a gift certificate?

After you purchase a gift certificate , you'll be able to enter an email address for the recipient. You could email it to yourself and forward it at a later time if you like. You can also take the Gift Certificate code and send it to the recipient.

Sale!

TerraFlex II - Trail Running and Hiking Shoe - Men

Original price was: $109.99.Current price is: $54.99.

“Love these shoes. No more ankle problems or shin splints.” – JASON H.

Abrasion and Water-Resistant Upper
Rugged 6.5mm FeelTrue® Sole with 4mm Lugs for Traction
Adjustable Huarache-Inspired Heel and Mid-Foot Webbing

TerraFlex II - Men ~~$109.99~~ $54.99

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We recommend ordering your usual size.

5,000 mile sole
warranty

79,127
5-Star reviewers!

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Description
Sizing
Care
FAQs
Customer Reviews

“The TerraFlex II is sturdy and protective against outdoor terrain. I really like it for running sprints and up hills and dirt trails. It’s a really great outdoor shoe.” – Chase B.

The TerraFlex II is an update to the best-selling original featuring a more abrasion and water-resistant upper — with no sacrifices to any of the trail-gripping traction, secure fit, and all-day comfort that people loved about the TerraFlex.

FEEL CONNECTED TO YOUR WORLD WHEN YOU RUN OR HIKE IN THE TERRAFLEX II

SECURE, TRAIL-GRIPPING COMFORT.

Whether you’re running, hiking, or simply taking a casual stroll off the beaten path, the TerraFlex II helps you feel more connected to the ground beneath your feet.

The rugged 6.5mm FeelTrue^® sole, including 4mm lugs for confident traction, provides the perfect combination of protection and ground feel for any off-road activity. The embedded 3mm layer of TrailFoam™ provides added comfort and protection and the toe bumper helps guard against unexpected bumps you encounter along your way.

Finally, our huarache-inspired heel cinch and mid-foot webbing remain fully adjustable, giving you a secure and stable fit throughout your adventure, while the iconic wider toe box lets your toes splay and flex to empower your stride.

LIGHTWEIGHT PROTECTION THAT FEELS JUST RIGHT.

At just 9.6 oz each for a men’s size 9, the TerraFlex II is even lighter than the original, placing it just between our ultra-lightweight Mesa Trail running shoe and the multi-purpose DayLite Hiker Fusion boot. This is one hiking shoe that won’t slow you down, keeping you going from trailhead to summit.

WE MAKE HIKING SHOES SO COMFORTABLE, YOU’LL FORGET THEY’RE EVEN ON.

If your feet don’t feel as good at the end of the day as they did in the beginning, you haven’t tried the TerraFlex II.

Life-changing comfort and superior performance come from letting your feet do what’s natural – bend, move, flex and feel.

All Xero Shoes feature a wider, foot-shaped toe box that lets your toes spread and relax, a non-elevated “zero drop” heel for proper posture, low-to-the-ground design for perfect balance and agility, and a flexible sole that gives you “just right” protection so you can bend, move, flex, and safely Feel the World® in total comfort.

Check out these reviews from Terraflex II wearers

Sizing

Men’s Sizing Tips

The TerraFlex II runs fairly true to size. We recommend ordering your regular size.

Based on statistics from the thousands of pairs of shoes sold across the world, we recommend ordering your regular size.

Free Exchanges!

Most people find our size recommendation gives them a proper fit, but just in case, we have a free exchange program for all US orders.

Size Conversion

If you normally buy a Euro or UK Size, check out the handy conversion chart beside.

Any questions? Just call us at 303 447 3100 or send us an email. We’re here to help.

US Sizes	EU Sizes	UK Sizes
6.5	39.5	5.5
7	40	6
7.5	40.5	6.5
8	41	7
8.5	41.5	7.5
9	42	8
9.5	42.5	8.5
10	43	9
10.5	43.5	9.5
11	44	10
11.5	44.5	10.5
12	45	11
12.5	45.5	11.5
13	46	12
14	47	13
15	48	14

Caring for your TerraFlex II

To clean your TerraFlex II, hand wash with warm water, mild soap and allow them to air dry. We do not recommend putting the TerraFlex II in the washing machine or dryer.

FAQs

What can I do in the TerraFlex?

With it’s grippy, lugged soles, the TerraFlex is built for running and hiking on trails.

That’s not to say you can’t walk, stroll, road run, Crossfit and much more… you can.

Put on your TerraFlex and Live Life Feet First!

What do I do with those Straps on the TerraFlex?

This is one of my favorite features in the TerraFlex.

The huarache-sandal inspired heel strap can be used to hold your heel and ankle in place. Pull the straps through the ankle holes in the sole, and then lock them in place with the laces.

The instep straps can be used to secure your instep, which can free up your toes and forefoot to relax and function better. Use the laces to tighten or loosen them to your liking.

What’s different between TerraFlex and Mesa Trail?

The TerraFlex is our first shoe designed for trails. With a rugged, stitched upper, it’s great for running and hiking.

The Mesa Trail is made more specifically for trail running, with a lightweight breathable mesh upper, extra moisture wicking lining, and a protective welded covering for the adjustable midfoot and instep straps.

Both shoes have a grippy, lugged, dual-chevron tread, and a 3mm TrailFoam layer (“hiding” in the outsole) for just-right protection and comfort.

How do I find my TerraFlex size?

Shoe sizing, especially online, is not a perfect process. That’s why we have a free exchange policy.

For EU/UK/JP sizing, there’s a conversion chart at the bottom of the TerraFlex product description.

The TerraFlex now runs fairly true to size. We recommend going with your usual athletic shoe size.

The TerraFlex is wider than conventional trail running shoes.

Sizing for a shoe is different than a sandal, so if you own one of our sandals, that doesn’t mean you’ll pick the same size in the TerraFlex, so use the measuring info if you can.

Keep in mind, though, that because the foot is three-dimensional, any two-dimensional measuring tool, such as a ruler or Brannock device®, can only approximate your true shoe size. Manufacturers model their shoes on different foot shapes, which is why you might be an 8 in one brand and a 9 in another. And then, there’s personal preference: three people with identical feet might think the same shoe fits differently.

If your foot is really narrow and smaller than a men’s 10, you may want to check out the “women’s” TerraFlex. The conversion between men’s and women’s is 1.5, so a men’s 8 is the same as a women’s 9.5.

Do you ship internationally?

We do! We’ve sold Xero Shoes to people in more than 85 countries around the world.
We use the US Postal service to send our shipments. The cost to ship will depend on the weight of the package and the delivery speed you select; several options will be provided at checkout.

All domestic shipments come with tracking. Limited tracking is available for some first class international shipments depending on the country, and full tracking is available with all Priority Express and Express International shipments.

Though almost all of our international orders arrive without incident, we strongly advise you to select Priority Express International or Express International if you live in a country with a less reliable postal service, including (but not limited to) India, Brazil, Mexico, South Africa, and Indonesia. We cannot guarantee delivery of packages shipped using First Class International.

International delivery can take anywhere from 3 days to 8 weeks depending on how long your order spends in customs at the border.

Please note that some countries do require the payment of import duties for international shipments above a certain value. We advise you to know the import regulations of your country and understand that you will be responsible for payment of any duties and fees imposed by your government at the border.

All packages will be marked as merchandise; as a commercial shipper, we are not able to mark a package as a gift (if you’re giving Xero Shoes as a gift, that’s not the same as us sending a gift).
Also, check our Stores page. There may be a Xero Shoes dealer closer to you.

How do I send a gift certificate?

After you purchase a gift certificate, you’ll be able to enter an email address for the recipient.

You could email it to yourself and forward it at a later time if you like.

You can also take the Gift Certificate code and send it to the recipient.

What’s your return policy?

Please go to Xero Shoes Return Policy page to learn about our 45-day return policy.

Customer Reviews

4.4 Based on 727 Reviews

5 ★

73%

532

4 ★

10%

3 ★

2 ★

1 ★

Customer Photos

TerraFlex II - Men - Customer Photo From Ashley Harrell

TerraFlex II - Men - Customer Photo From michael huizenga

TerraFlex II - Men - Customer Photo From James Miner

TerraFlex II - Men - Customer Photo From Tim Guiney

TerraFlex II - Men - Customer Photo From John Resciniti

TerraFlex II - Men - Customer Photo From Eric Bryan

TerraFlex II - Men - Customer Photo From Brandon Rudin

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04/30/2025

Bradley S.

My first and probably a good transition

They are okay so far. I was surprised they are as substantial as they are, the sole is beefier, stiffer, less flexible than I expected, but I suppose as a trail runner that's part of the design. I also expect that may improve as I wear and break them in. I am looking at them, at a decent sale price, as a good intermediary between regular shoes and something more minimal. I have a short, wide foot, and I think maybe the challenges of design and geometry might be exacerbated by that. They are wide, but seems like they could be even a bit wider. Not that my toes are constrained, but they could definitely have even a bit more room to spread out. I appreciate the looks and styling. I took the foot beds out to maximize the room my feet have - they are about as equally comfortable with and without them in. I have a high arch and have always had shoes with arch support and I am navigating how the shoes and my feet feel as I spend more and more time in them. I know adapting is a process that takes some time. Just wearing them around a bit I have had a couple of instances where I was walking and heel struck a rock/piece of gravel and was reminded to be aware of that because - ouch. I am happy with these at this price as a first purchase of minimalist-ish footwear. I'm learning and expect to learn more and that will help inform future purchases.

TerraFlex II - Men

04/19/2025

Barbara E.

Best fit

I love these shoes, they fit perfectly. Hope these ones hold up longer

TerraFlex II - Men

04/15/2025

Robert C.

Xero shoes

I like them to workout and run in but both pairs I bought have worn out prematurely on the outside. I did receive a pair under warranty but haven’t dealt with the other pair yet.

TerraFlex II - Men