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Shamma - Maximus - Ultragrip (Unisex)

Regular price
$135.99
Regular price
$169.99
Sale price
$135.99
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Waiting on Your Size?

Some Shamma styles and sizes sell out fast. We regularly restock our most popular models. Scroll down to see what’s arriving next and when.

Next Shamma Restock Date

No restock date available currently. You can add your email address to be notified once the size/colour you are after has been restocked.  

Stock is limited and popular sizes tend to sell out quickly once they land.

FREE AUS Shipping for Orders over $250

60 Day Easy Returns & Free Instant Exchanges

Durable, rugged, and perfectly balanced — the Shamma Maximus – UltraGrip (Unisex) is built for those who want extra protection without losing the barefoot connection. Designed with a slightly thicker sole than the Warriors, the Maximus provides stability and durability while maintaining the minimalist freedom Shamma is known for. Whether you’re in the gym or out on the trail, these sandals are a reliable choice for any environment.

The Maximus sole pairs an 8mm Vibram® Newflex base with the weather-ready UltraGrip footbed, creating a 9mm total stack height. Vibram® Newflex combines rubber and EVA for a lightweight yet durable sole with aggressive tread. The result is a sandal that diffuses the impact of rocks, sticks, and rough terrain while staying flexible and responsive for natural movement — even in the harshest conditions.

Features:

  • 8mm Vibram® Newflex sole with aggressive tread for grip and durability

  • 9mm total stack height for balanced protection and ground feel

  • UltraGrip footbed for traction in wet or dry conditions

  • Elite Lacing System with three independent adjustment zones

  • Shamma Elite Buckle for precision toe strap adjustments

  • Ultrasuede-lined straps for premium comfort

  • Recraftable design — replace worn parts at home

  • Proudly made in the USA with quality global materials

  • Suitable for both men and women

  • Ideal for trail hikes, gym training, and everyday adventures

Specifications

Thickness (inside tread): 7mm-8mm

Thickness (total with tread): 9mm

Weight: approximately 128g / sandal (at size 9)

SIZING & FIT GUIDE

We strongly recommend using the printable templates to check your foot size to ensure a perfect fit - CLICK HERE to access the Sizing Templates.

NOTE: Make sure your printer doesn’t resize or shrink to fit when printing! Larger sizes will need to be printed Poster across 2 sheets of paper.

To size yourself, print the template out and place your foot on the template so that the toe hole is between your big toe and first little toe. Make sure that your toes aren’t hanging off the front of the template, and that your ankles line up with the ankle slots on the sides of the sandal. If the ankle slots are under your foot a little bit, that’s ok, the laces come up and around your feet – just make sure that your toes don’t go past the front of the sandal, that your heel doesn’t go past the back of the sandal, and that the toe hole and ankle slots line up with your feet. For the best fit, we recommend choosing a sandal size that gives you between 3.2mm to 6.4mm of extra room in front of your toes and behind your heel.

SHIPPING & RETURNS

SHIPPING

We offer FREE Standard Shipping in Australia for Orders over $250

We ship to Australia & NZ using Australia Post.

We offer Standard and Express Shipping options

Our standard shipping rate starts from $9.95, Australia Wide with Authority to leave. 

When you give authority to leave, you are allowing our carriers to leave the package unattended at your address without a signature. Please note if you opt to leave your order unattended, Bprimal will not be responsible for any lost or stolen packages.

You can elect to have your package delivered with a signature on delivery for an additional $2 fee.

Express Shipping is also available from AU$19.95 (2-4 business days)

International Shipping is available to New Zealand from AU$19.95

All orders placed prior to Midday (AEST) will be dispatched the same day (business days Mon-Fri) with the exception of Sale Periods where we may experience up to 3 day delay for dispatch. 

You will receive a tracking number and link to track your delivery once it has been dispatched.

PICK UP IN STORE

We now offer a pickup option from our stores in Neutral Bay, NSW & Northcote, VIC (ONLY for items in stock at the store). *Please note, you cannot order items for pick up and online delivery in the same order - you must select either the 'Pick Up' or 'Ship' delivery option at checkout.

If you selected Pick Up at checkout, you will receive an email notification when your order is ready for collection (usually within 24 hours). Pick up is available during store hours.

International Duties & Taxes — New Zealand

For New Zealand orders over NZD $1,000, import duties and taxes may apply when your order arrives. These charges are set by New Zealand customs and are not included or collected at checkout.

Any duties, taxes, or customs fees are the customer’s responsibility and will need to be paid directly on arrival. Unfortunately, we’re unable to cover or reimburse these charges.

RETURNS

If your order isn’t right for you, you can return it for a refund* or exchange within 60 days of receiving your order. Item must be unworn and in BRAND NEW condition in original box with tags still attached (if applicable). Please note that postage costs to return the item(s) to bprimal remain the customers responsibility with the exception of customers that have purchased our Free Return Guarantee. 

Note: PRELOVED or Items marked as CLEARANCE or are NOT eligible for return

FREE RETURN GUARANTEE 

Australian & NZ customers can elect to include our $1.99 Return Guarantee at checkout, and we will provide you 1x PRE-PAID shipping label if you need to return any items to us for exchange or refund.

SIZE EXCHANGE

Shipping is free for a size exchange (one exchange per order) where we cover the postage to you for the exchange pair. We also offer Instant Exchanges for Australian Customers. 

REFUND

If you are not satisfied with your purchase from bprimal you can return it to us for a full refund minus any postage costs. *Please note that if you have already exchanged your order, you will only be eligible for a store credit if you return the exchange item. Item must be unworn and in BRAND NEW condition.

Care Guide

Keep your barefoot shoes looking fresh and performing their best with a little regular care.

We recommend using our Boom Cleaning Set for easy, effective cleaning. To add an extra layer of protection against water and stains, finish with our Waterproofing Spray.

  • Spot clean with a soft cloth or brush and Boom Cleaning Foam
  • Avoid machine washing or full submersion
  • Let shoes air dry naturally — no heat or direct sun
  • Use a shoe tree or stuff with paper to help keep shape
  • Apply waterproof spray regularly for extra protection

Shamma - Maximus - Ultragrip (Unisex)
Shamma - Maximus - Ultragrip (Unisex)
Shamma - Maximus - Ultragrip (Unisex)
Shamma - Maximus - Ultragrip (Unisex)
Shamma - Maximus - Ultragrip (Unisex)
Shamma - Maximus - Ultragrip (Unisex)
Shamma - Maximus - Ultragrip (Unisex)
Shamma - Maximus - Ultragrip (Unisex)
Shamma - Maximus - Ultragrip (Unisex)
Shamma - Maximus - Ultragrip (Unisex)
Shamma - Maximus - Ultragrip (Unisex)
Shamma - Maximus - Ultragrip (Unisex)
  • 5 stars: 29 (94%)
  • 4 stars: 2 (6%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
P
Petra M.
Outstanding! They are amazing on muddy trails and

Outstanding! They are amazing on muddy trails and ok on concrete. I have these and the warriors with a leather finish. Overall, I prefer the maximus, but both are outstanding.

E
Ethan D.

these sandals feel very sturdy, and super grippy, the straps hold my feet in place very well, and they’re very comfortable to wear

C
Craig P.

I spent a great deal of time researching what would be the best fit for me. I have been wearing vibram five finger for years and wanted a sandal that would fit me like a glove and be tough enough to handle the challenges. The Shama Maximus ultra grip feels great so far. I’ve only had them for a few days. With a vibram sole I expect longevity and great grip. Happy to use these sandals in all situations

R
Rochelle

Brilliant. Possibly best shoes ever.

A
Aaron S.

I have tried a lot of different running sandals and Shamma sandals are by far the best. They fit really well, even in wet conditions, and don't chafe against my feet.

D
Douglas M.

Great! Still getting used to something between my toes while I run but they’re a nice change of pace for slower runs for me!

T
Taylor J.

The Warrior Maximus is my 4th pair of Shammas and they live up to every expectation. The Shamma elite lacing system adjusts quickly, requires no break in time, and feels silky smooth. After having a pair of Chargers and Warriors, I think the Warrior Maximus is the perfect combo of grip and just enough thickness. Shamma has also done custom work for me and they were very good to work with. They communicated well to make sure they understood what I wanted and I understood what was possible. I will keep coming back to Shamma for my sandal needs.

e
evan p.

I use shamma sandals for everything. Treacherous hikes, trail running, CrossFit, yoga, grocery shopping, white water rafting (use straps), 5K runs and long distance running (I don’t recommend this as it is too high impact with little cushion). Don’t let your dogs get ahold of them because they will get chewed through.

P
Patrice E.

I really love these sandals. The straps are super comfortable and I like the simplicity of slipping them on, the feel of the earth under my feet, and that these are waterproof!
Overall, I love them.

C
Cole S.

Amazing is the only word I have for my Shammas. I work in construction and normally wear boots 8 hours a day. My shammas have become my go-to after hours shoes. Everyday, no days off. If I ever wear these out, I will surely be back for another pair!

T
Thomas W.

Shoes are good quality.

D
David B.

Excellent strap system for my foot shape.
I’ve gone through several shoes/sandals for my fore foot striking and I wish I started with the Shamas earlier.

E
Emily W.

I really enjoy adjustability and adaptability of these sandals. I wear them every day to work (massage therapist in luxury spa) and I am able to go hiking and adventuring in them. The power straps are an awesome addition, though they are still very secure without them.

The only thing is when I first got them they wore right under my lateral malleolus on both feet. I thought I would have to mole skin them but ever since the first couple days, my skin has been fine.

G
George C.

The laces were easier to adjust than I expected, foot bed really comfortable, outside sole works great so far on both concrete sidewalks/paved streets, and dry trails. The 9mm total thickness sole still gives me that barefoot feel while protecting my feet from jagged rocks, and the larger dried creek bed rocks that are on the trails I'm hiking on, the sandals dry fairly quickly after hand washing them as well.

C
Casey M.

Spend 2-3 minutes setting them up and then you are all set. Great barefoot feel!

E
Erin M.

Extremely happy with my Shamma sandals, and the company. Wore my original Chargers for 2 years, and was looking to replace them with a similar sandal with a more rugged sole. Very happy with the Warriors Maximus! Put them on, adjusted them once, and forgot they were there!

D
Doyle C.

Very easy to wear , just thick enough so gravel doesn’t hurt and very light

A
Augusto A.

Love wearing them. My go to shoe

A
Arthur G.

The sandals are great, loving them.

C
Carol T.

I am not a runner, but I do hike and kayak, so I wanted a minimalist zero drop sports sandal that would “do it all”. I’m a former wearer of Chacos, but they are now too bulky and I no longer need something to support my arches since my feet have strengthened from barefoot walking and they support themselves. I tried some other brands of barefoot sandals but Shamma’s just worked perfectly for my foot shape. I love the way that once you have the straps adjusted right, the shoe just stays on your feet—no slipping or sliding, but also no pinching or strangling. The back strap is designed so that it doesn’t slip off your heel when you walk or run either. That has always been a problem for me with other sandals. The sole of the Warrior Maximus is just the right thickness for protection from pokey things, but thin and flexible enough for great ground feel.

K
Kevin L.

My overall experience with Shamma has been wonderful. I have been wearing Xero Z-Trails for the last 3 years and this is my first pair of sandals outside of the z style lacing.

Some things I love about this sandal.

Lacing: the lacing system is incredibly comfortable after you get it dialed in correctly. My first 5k run in the sandals were a breeze. I did not have to worry about my foot slipping out nor did I have any hotspots from the lacing.

Grip: it was a hard decision on choosing between the leather and the ultra grip versions. I ultimately decided on the ultra grip due to the rare occasion I’m running around water. I have no regrets here. I have already tested these in the random rains we received here the past week and the sandals held up perfectly.

Comfort: I put these on and I forget I have anything on my feet. They provide a high level of comfort and a feeling of being barefoot while also protecting your feet random rocks and sharp objects on the trail.

Overall, I will be a Shamma customer for my sandals from here on it. My next purchase will be the Warriors in the LE version for my casual wear and maybe a few road runs.

E
Edmund C.

I just got into sandals and this is my third pair of Shammas. I love my thin Warriors a lot, and got some all browns for casual use because you can easily slip them on and pull up the strap and they look cool. But the Warriors Max is for my specific use of running on long rural gravel roads that have just enough surprising cut rock to make 4mm unpleasant.

G
Gautam P.

I really love the Shamma sandals. I use them predominantly for running covering about 30km a week. They are super comfortable and I now prefer them over shoes. I feel an improvement in my running posture and less running niggles and pains.

D
Dieter

I tried 3 different brands until I finally bought the right ones. The warriors are really great! Super comfy, even on runs < 2hrs. Ian very happy now and confident that I won't get back into shoes (unless it is tooooo cold). Can't wait to run again ☺️👣✌️

J
Joel S.

What I love about my Shammas is that they’re not only the most comfortable sandals I’ve ever worn, but I also feel like I could spring into action at any moment while wearing them – something I don’t get from any other sandal.

D
Dan B.

Beautiful product, very light, more is less!!

A
Adam K.

The Warriors Maximus are an excellent thickness if you like Warriors but want a bit more protection. I love my regular Warriors for pavement or indoor use, but for hiking they are a bit too thin for the rocky Appalachian Trail. I think these might become my new daily drivers over the Warriors simply for the comfort factor while still allowing my foot to function naturally.

If you are deciding between the leather (LE) and ultragrip sole, I feel the ultragrip is superior for two reasons. 1) My Warriors LE are a bit slippery between my foot and the sole after a few months of use. This reduces my gait efficiency and makes some of my steps awkward as I compensate. 2) I would not take leather sandals in the water to prevent water damage, but rubber will not be impacted and will also dry faster.

S
Sam B.

Only 2 runs in and a first time running sandal wearer but I can't believe how good they feel! Trails are super rocky and hard packed where I live are they handle it no worries. I do hope they last okay. Didn't get power straps and haven't felt a need for them yet.

Running sandals always seemed more for advanced runners but I'm a total newbie and combining Maffetone Method with transitioning to sandals and it feels great.

J
Juan F.

I tried the mountain goats and the warriors first and I didn’t adapt to the terrain I normally run ,these ones do the are either too stiff or too soft ,I have on y run 100 kms in them so far so good

B
Brian L.

The Warriors Maximus may just be the perfect running sandal. They are the perfect balance between the lightness and flexibility of the regular Warriors and the heavy duty protection of the mountain goats. They strike a perfect balance for those of us who run a mixture of roads and trails in the same run. They are thick enough to handle all but the worst stones and thin enough to still be able to feel the road. The Chargers are nice but they are just too slippery with almost no tread on them whatsoever. The Maximus solves that problem nicely. If there is a downside it is the same downside with all the Shamma sandals and that is that they tend to wear out rather quickly. I find that after a couple of months I have to build up the worn out spots using Shoe Goo. Still, there is no running sandal on the market that has a better strapping system. Please don’t ever change this! Shamma sandals are the only sandals that actually stay secure on my feet without constant adjustment.

🌱 Shamma Footwear specific FAQ's

Why choose running sandals?

Running sandals, also known as athletic sandals, are nothing new—they’ve been around for thousands of years. From marathon-running Greeks to Roman warriors, sandals were once designed for serious movement, not just lounging around.

These days, we’re bringing that natural freedom back. With your feet open to the air, your toes can spread, you sweat less, and you avoid the painful blisters that come with closed shoes. Even better, your feet get to move the way nature intended—supporting your balance, coordination, and whole-body alignment.

Shamma Sandals are crafted to move with you through every adventure—from running and lifting to hiking, kayaking, and even obstacle races. If they’re secure enough for running, you can trust them for just about anything.

I’ve tried other running sandals. What makes Shammas different?

At first glance, a lot of running sandals look alike. But once you slip on a pair, you’ll feel the difference. Shamma Sandals are all about striking the balance—giving you full freedom of movement while keeping your foot locked in and secure.

From high-quality materials (even military-spec thread) to custom machines designed to eliminate hot spots, every detail is crafted for comfort and performance. The result? Sandals so minimal and natural-feeling, you’ll forget you’re even wearing them.

How do I choose the right size?

The size chart for each product shows the sandal length and width of each shoe model (US sizes). We recommend approx 12mm of space in front of your toes (no less than 6mm and no more than 18mm). Refer to our comprehensive Find your Perfect Fit page for guidance on exactly how to measure your feet and choose the right size.

Still not sure? Reach out to info@bprimal.com — the team is always happy to help.

Do you carry women’s sizes?

Shamma Sandals are unisex and use proprietary Shamma Sizing. This makes it easy to find your perfect fit, no matter your foot shape.

Which sandal is right for me?

That depends on where your adventures take you. Each sandal has its own strengths, whether you’re looking for more ground feel, extra grip, or something built for wet conditions. On every product page, you’ll find clear details on the sole, footbed, and lacing system to guide your choice.

Tip: Use the menu to browse sandals by activity—it’s a simple way to find your perfect fit.

Are Shammas only good for running?

Not at all. While they’re amazing for running, they’re built for all kinds of movement and everyday wear. Wear them on a hike, a walk through town, or just to kick back. They’re performance sandals that keep up with your lifestyle.

Can I wear Shammas in wet conditions?

Yes — especially the UltraGrip models, which are waterproof, quick-drying, and ideal for everything from stream crossings to rainy adventures.

Leather editions handle normal foot sweat well, but they don’t love being soaked. Wet leather can feel slippery and may change color, which is totally natural for that material. For full immersion (like swimming or river trekking), pair your sandals with Power Straps for extra hold.

How long does it take to break them in?

Not long. Within a few days, the toe strap will soften, followed by the heel straps and laces. Around the 1–2 week mark, the soles will mould beautifully to your feet, and by 3–4 weeks, they’ll feel like a second skin. Think of it as your sandals “hugging” your feet—like finding your favourite spot on the couch.

Can you feel the toe plug underfoot?

Nope. Toe plugs are counter-sunk and sit flush with the sole, so you won’t notice them. The only exception is with Warriors soles, where you might feel the plug briefly during break-in. Once the sole forms around your foot, it blends right in.

Are the soles protective?

Yes — they protect while still giving you that barefoot ground feel. The Warriors sole offers the most natural connection to the ground, while the TrailStar Omega sole provides the most protection. Over time, the sole moulds to your unique footprint for a custom fit.

Will the laces wear out if they touch the ground?

Not at all. Shamma laces are built tough and last as long as the sandal (and usually beyond). Even if they graze the ground, they won’t wear through thanks to the way the sole lifts and protects them.

How do I care for my Shamma Sandals?

They’re made to last, but a little care keeps them happy:

  • UltraGrip sandals: Wash with cool water and mild soap if needed. Air dry away from direct heat, sunlight, or steam.
  • Leather sandals: Use a suitable Leather Cleaner + Conditioner for the best results.

Tip: Avoid leaving your sandals in extreme conditions (intense heat, cold, or moisture). They’re fine on your feet during adventures, but storing them in harsh conditions can damage their shape or materials.

Are Shamma sandals vegan?

All UltraGrip top models are vegan. Just look for the UltraGrip footbed option when choosing your pair.

What Is There Is A Problem With My Shoes?

We always look to be reasonable and fair in resolving any problem you have with our products. Please email info@bprimal.com with your order number and photos.