Whitewater? Mud? Meet your new sole mate, the Cairn Pro II.

From crag to campfire, Cairn is the modern adventure sandal.

Less is more when you wander in our most minimal sandals.

Gear up with everything from our original split-toe socks to multi-functional headwear.

Cairn 3D PRO II Adventure Sandals

Fast + Free US Shipping

For wet and slippery missions, there’s Cairn 3D Pro II, the ultimate adventure sandal outfitted with our new Hook-heel strap, extra-sticky Vibram® Megagrip outsole, and molded 3D footbed. The Pro II G-hook and loop system locks in the heel strap like it does the front, for a super secure fit that won’t fail in the frothiest rapids or thickest silt.  

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Cairn 3D Pro II Features

New G-hook-and-loop heel and front strap system creates an extra secure foothold that won’t gum up in mud or pull off in whitewater. 


3D footbed is zero-drop anatomically molded with tasteful arch and toe support. Built for those seeking extra support or looking to log big miles.


Vibram® Megagrip Sole in non-marking grey Andesite is super grippy and designed to perform in wet + slippery conditions. Re-soulable.

Equipped for Adventure

Our Patent-Pending design features premium webbing, 3 adjustment zones, and our sole-hugger wings for locked-in stability.


Premium Quality: We spent years sourcing the best materials in the world, so you can spend maximum time enjoying the outdoors. The Cairn is USA Assembled of Domestic and Foreign Parts.


1% For the Planet: We proudly donate 1% of your purchase to environmental non-profits.

Our sizing is unisex (e.g. size 9/10 is equivalent to size 9 for men, and size 10 for women.) Some Bedrockers find our sizes run slightly small, especially in our smallest sizes.

View/Download/Print our Cairn Sandals Sole Templates.

Follow these instructions to take care of your Bedrocks and maximize their life-span:

  • For footbed's sake, do not leave your sandals in extreme heat (e.g. hot car) or intense direct sun exposure for durations ( e.g. sunny porch). Our ultralight Go Far Vibram® footbeds can warp if left exposed in these environments.
  • To clean your Bedrocks, handwash with a brush, water, and your favorite eco-friendly soap! Let them dry in a shaded environment or briefly in the sun. Do not machine wash. 
  • To keep your Velcro® heel-strap long lasting, use side buckle adjustment for every-day in and out, and occasionally remove grit and debris from heel-strap by scrubbing with a wire brush.

    The Cairn 3D PRO Custom Sole: Ultra Grippy and Adventure Capable

    • All Cairn 3D Pro Sandals are made with 100% vegan materials and construction.
    • Ultra-grippy, exclusive REGOLITH Bedrock x Vibram® sole made with Megagrip. 
    • Our new Geo-patterned footbed features macro pentagonal-grooves on the sole, providing excellent grip in both dry and wet conditions, and more aeration power to keep your feet less sweaty.
    • At 16 mm base stack height under the forefoot, the new molded Cairn 3D Vibram® sole is a union of freedom and support. 
    • Zero Drop from toe to heel.

    Strap System: No-Slip Secure Fit.

    • Bedrock Sole Hugger design cradles feet with side-to-side support, keeping you stable in challenging conditions. Patent Pending.
    • Intelligent 3/4inch wide strap system with three independent adjustment zones for quick, secure fitting. Patent Pending.

    Premium Quality 

    • We spent years sourcing the best materials, so you can spend maximum time enjoying the outdoors. With exclusive Vibram® rubber soling, polyester and nylon webbing upper, metal and acetal plastic hardware, and US military-grade Velcro®, you’ll do just that.
    • Average weight 10.5 Oz per size 9 sandal
    Customer Reviews
    4.9 Based on 194 Reviews
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    Filter Reviews:
      Will A.
      United States United States
      Second Pair

      I had a original pair of Cairns that I used for bikes and my everyday footwear in the summer, but they were a little small, and because I have a high arch I needed a little more support. When the Black Friday sale hit I decided to give the 3D Pro II's a try, and boy am I glad I did. Sizing up is a pro move and the 3D insole provides just enough support without sacrificing much flexibility.

      United States United States
      Great sandals

      Definitely order a size up and save your self in return postage. But they are comfy and feel good on your feet.

      United States United States
      Perfect for lazy trips and trail riding!

      I love using my Bedrocks to either make short trips to the store or for take-out. Another great way I love using them is on those days when I take my bike out for a ride! Absolutely love them, normally a size 12 with wide and flat feet. A size 12 in these fit just right.

      A Bedrock Sandals Customer
      Brian M.
      United States United States
      I scoffed hard at first; now I wear my Carin 3D Pro II’s daily

      I was skeptical of Bedrock Sandals at first; after all, I’m the guy who brings 9 white oxford shirts to Burning Man, I detest flip flops and poor table manners. I don’t jump on bandwagons. Some time during the Before Times, I vaguely thought about trying out a pair of Bedrock Sandals, going so far as to print the foot measuring thing. With little less than a shrug, I forgot all about the sandals until a few weeks ago but when I saw basically everything was out of stock I shrugged again, but this time I signed up for a restock notice. I don’t know what elicited a curious second look from me, but when that email arrived telling me copper Bedrock Cairn 3D Pro II were back in stock, I ordered men’s 8 and a few days later they arrived. They were too small, by a little, enough where I thought it best to ask. I sent a photo of the sandals on my feet and within seconds someone from Bedrock replied saying I should order up a size. When I subsequently emailed about exchanging (somehow I missed the directions on the website) they told me about the sale starting a day or two later where I could get 20 percent off, and if I was one of the first 400 orders, I could score a pair of grey socks. I made a calendar notification, which I didn’t need, and ordered my sandals with a few pair of socks — including the free pair. (I just ordered another pair of grey and another pair of green socks) I put the socks and sandals on and it was magic. I went on small walks around my neighborhood to try out the sandals, including a short walk taking a hilly and circuitous route to the International Rose Test Garden here in Portland, OR. I walked on the dirt paths in Washington Park, I walked through the plush old-money neighborhoods in the west hills, I walked up and down the giant staircases, I walked among giant doug fir trees, moss-covered walls, I wanted to keep going. I walked through the Goose Hollow neighborhood back to my soulless concrete box near Portland State University. I was surprised how comfortable the socks were on that cool, damp day and how natural it felt to walk in the Cairn 3D Pro II sandals. My feet were never damp and cold as they normally are in cool weather. I’ve worn them every day since then — donning my colorful alpaca wool leg warmers (for a number of reasons I keep my trouser legs cuffed about mid to upper calf) when it’s chilly. I’ve only worn my sneakers (that certain German brand that makes a certain popular soccer shoe) when I rode my fixed gear bike because of the toe clips and straps. When I get my new bikepacking rig rolling with it’s flat pedals I’ll roll around Portland and adventure wearing these sandals. Tomorrow morning will be my second trip to the Portland Farmers Market for a breakfast burrito wearing my Bedrock Carin 3D Pro II. My only complaint isn’t really a complaint. I wish waterproof tabi/one-toe socks existed or that I had the means to make them myself. I started skeptical, but my scoffing evolved to adoration about these shoes. Also I learned sandals aren’t just for hippies and Instagram influencers, they’re for everyone, just like the outdoors.

      Bedrock Sandals Cairn 3D PRO II Adventure Sandals ReviewBedrock Sandals Cairn 3D PRO II Adventure Sandals Review
      Czechia Czechia

      completely blown away by how good these sandals are. I've been wearing them for over a year now and they went from something i wore on particular occasions to pretty much the only thing I put on my feet from spring to fall. from camping and hiking to climbing and wading rivers these sandals kill it. you get an incredibly secure fit for how easy the on and off is. incredibly tough as well. if i wore any other pair of shes as much as i've worn these they'd be destroyed by now. I've started trying to find activities that they don't perform well in and so far the only thing i would recommend not doing in them is playing tennis (the only time i've gotten blisters in them but hey... play stupid games, win stupid prizes). climbing up long scree fields is possible in these but it is easier in shoes. What and elegantly simple and effective design. Lifelong customer for sure

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