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The lightest Black Diamond harness built for routes that require maximum focus and minimum weight, the Zone is the ultimate sport climbing workhorse. READ MORE
Item# BD651085CRRYSM_1
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The lightest Black Diamond harness built for routes that require maximum focus and minimum weight, the Zone is the ultimate sport climbing workhorse. Learn More


Designed for the lightweight sport climbing redpoint, the Black Diamond Zone Harness is a bolt clipper's dream. High performance, lightweight and breathable, it features Fusion Comfort Technology, so you'll have ample support when hang-dogging your proj. A stretch woven outer fabric adds breathability, and contoured fit maximizes comfort.

  • Fusion Comfort Technology
  • Speed buckle adjustment
  • Fixed leg loops
  • Contoured fit
  • Four pressure-molded gear loops


Tech Specs

Series :   Sport
Weight :   307 g (10.8 oz)
Fusion Comfort Construction

Fusion Comfort Construction™

Intent on building a harness that would move with the body it protects, we designed a triple-weave webbing on the interior of the harness’s waistbelt that provides movement-focused technology while maintaining superior breathability, durability and strength. Also featured on the harness’s leg loops, this technology offers excellent load sharing, relieving pressure from sensitive points of contact.


All-Around and Sport Harness Comparision



  • UKC / UKH Highly Recommended






Zone Harness is rated 4.3 out of 5 by 12.
Rated 3 out of 5 by from Design flaws on an otherwise good harness this harness should have been my next sport climbing harness - after playing with it for a while it needs to go though... 1. gear loops are way too small (common problem with BD harnesses) 2. the way the gear loops are attached to the waist belt they actually generate pressure points on the inside of the waist belt, quite uncomfy 3. the fusion comfort technology doesn't manage to stand up to the equivalent 3D-vent lite on edelrids ace harness or the even superior warp strength technology on the arcteryx harnesses...
Date published: 2018-04-18
Rated 5 out of 5 by from Best Black Diamond harness ever This is by far the best sport climbing harness ever made. I use this for single and multi pitch sport climbs and it is super comfy. Don't let the thin design throw you off, it is great for long belays and when your climbing you forget it seven on. The gear loops are great quality, and can fit 6-7 quickdraws on each loop. The fit is exact to the sizing chart, no bigger, no less. Over all, the best harness I have ever put on, and good job to BD keep doing what your doing.
Date published: 2017-03-19
Rated 4 out of 5 by from Good, but some flaws Light, packs small, reasonably comfortable. Just a few small tweaks needed. Gear loops are small, front loop could be a touch larger and slightly more forward. Rear clip loop could be a touch more slack to make clipping tag style stuff into it blind behind your back a bit easier as well. I am 6'2" 185 lbs and I wear a medium, legs are a bit tight for me, but this is true to my common fit of needed large leg loops and medium waste.
Date published: 2017-05-17
Rated 4 out of 5 by from Solid Sport Climbing Harness Overview: This is an excellent harness for single-pitch sport climbing. Very light and comfortable. The gear loops are stiff enough to make clipping/unclipping quickdraws smooth and efficient. Sizing: Consistent with other BD harnesses. I'm 6'5", 180lbs with a 34" waist in pants. I wear a medium in all other BD harnesses and medium Zone harness fits me the same. Why only four stars: The gear loops are a bit too small for routes that require a lot of draws. I would appreciate slightly larger gear loops.
Date published: 2017-10-30
Rated 3 out of 5 by from Lightweight harness thats still full featured Whats up BD customers, This harness performs well and will be a satisfying purchase with a few caveats. The best thing about this harness is how light, and packable it is. Given its light design it is relatively comfortable, though I do prefer my other harness for working sport routes, or scenarios where I know I will be fully hanging in my harness for long periods of time. Its gear loops are nicely placed for sport climbing, however if loaded up with a rack of gear, the back loops are too close to the front and the gear becomes quite clustered. It is quite nice that it has ice clip loops, though I wish they were slightly back. The main problem I've had with this harness is that the thing piece of webbing that creates the "loop" below the belay loop on the leg strap pulled apart the 2nd or 3rd time I fell while climbing in this harness. This piece of webbing is certainly not apart of the structural strength, however it is nice at keeping the rope centered on the leg loop straps. Cheers.
Date published: 2017-06-16
Rated 4 out of 5 by from Overall a great harness Been wearing this for a couple of weeks. I like the design a lot. It's really comfortable. My only beef is with the closure system. It doesn't move smoothly...I have to force and pull pretty hard to get it to tighten. Wish they had put a little more effort into making that part of the harness more user friendly.
Date published: 2018-04-29
Rated 5 out of 5 by from The Ultimate Harness I've used this harness nearly every day since I got it last year and it's exactly what I need; nothing more nothing less. Lightweight but comfortable, nothing useless and nothing sacrificed. It's hard to find the best of both worlds but I think this is the best all around high performing harness I've owned.
Date published: 2019-02-27
Rated 4 out of 5 by from Simplistic Super psyched on this harness. Only what you need and nothing more. Super light, super effective, and still gives you the piece of mind of safety. Due to the simplicity of the harness, it can become uncomfortable if you're projecting, but kind of what you expect when you only have what you need.
Date published: 2017-11-02
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