Cairn 3D PRO Adventure Sandals


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Sometimes you want a sticky situation. For wet and slippery missions, there’s Cairn 3D Pro, our ultimate adventure sandal outfitted with an extra-sticky Vibram® Megagrip outsole and our new molded footbed. 

Size Guide
Strap Color
Trail Blazer
Big Water Blue

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

    Based on 494 reviews
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    United States

    Cairn 3D PRO Adventure Sandals

    In the short time I have owned these sandals I can say that I have really enjoyed wearing them both on and off the trail. The quality, fit, and finish is top notch. I would definitely recommend these to anyone looking for sandals that are capable of handling rough terrains without the unnecessary weight or bulk like the competition.

    United States

    Everything they should be.

    The Cairn 3D PRO sandals aren't trying to be minimalist like their Classic cousins, and what they are is durable, comfortable, and nice to look at. I like their flexible footbed better than I've ever liked Chacos, and I like their shape far better than the recent years of Teva offerings. I also like that they don't artificially separate men's and women's sandals (though REI took that route with Bedrocks for some reason) for sizing or design. I wore them constantly on vacation in Florida, with lots of walking an a little flatland hiking, and very much liked the grip and stability. The latter surprised me because I wondered how that would be, with the three-point anchoring. Still haven't taken them to the mountains, but from what I saw these stand a good chance of being just fine. I hope they last me forever!

    Benjamin W.
    United States

    My girlfriend says they look funny

    I wore them exclusively for a week straight, super comfortable right out of the box. Looking forward to many years of use

    Ryan P.
    United States

    Outstanding footwear.

    I have worn many types of sandals for various activities (hiking, beach, lounging, kayaking) over the years. After wearing these for a couple of months… I absolutely love the Cairn 3D Pro. I love them but not quite perfectly. Sizing….. I normally wear around US 11 or UK 45 depending on manufacturer. I like that Bedrock has the print and test option. I followed the directions with the 100% sizing on the printer and tested the size. I feel that the test page was slightly off compared to the actual sandal. I have the us 11 size and my feet just fit on them. I debated returning for a size 12 but decided to try them out anyway. I use them primarily to kayak across Pearl Harbor to work every morning and throughout the day. Comfort, style, and absolutely awesome grip and feel has sold me on these. I will order another pair down the road and try the size 12. Unless an item is in my opinion absolutely perfect…. I do not rate 5 stars. Maybe the size 12 will be? I absolutely will be a repeat customer.

    United States

    Sandals for the beach

    Once I made the fit adjustments, I found them very comfortable.

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    Sizing Chart