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Mercury 75 Pack

$299.95 USD


  • Mercury 75 Pack
  • Mercury 75 Pack


A full-featured backpacking pack with ergoACTIV XP suspension, the Mercury 75 maximizes comfort on the trail with a cavernous interior for all the camp comforts.
Item# BD681099STONLG_1
$299.95 USD

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A full-featured backpacking pack with ergoACTIV XP suspension, the Mercury 75 maximizes comfort on the trail with a cavernous interior for all the camp comforts. Learn More


Built for rough trails, big-mileage days and maximum comfort over the long haul, the Black Diamond Mercury 75 Backpack combines classic backpacking features with sleek, modern designs and unparalleled freedom of movement. From extended fly-in trips in Alaska to multi-week stints on the AT, our ergoACTIV XP suspension system uses a custom, 3D pivoting hipbelt with urethane tendons, a men's-specific fit and SwingArmTM shoulder straps for increased stability and dynamic load transfer. The pack's front zippered panel gives you full access to the inside, while multiple pockets, dividers and straps help secure and organize your gear during extended trips.

  • ergoACTIV XP suspension with OpenAir backpanel and SwingArm shoulder straps
  • Top-loading with floating top pocket, plus front zippered access
  • Waterproof taping on top and bottom
  • Compartment divider, side and hipbelt pockets, front and internal organizer pockets
  • Retractable trekking pole/ice axe loop, sleeping pad straps, hydration compatible
  • Also available as women's-specific Onyx

WHY ACTIVE suspension?

WHY ACTIVE suspension?

Black Diamond packs built with our award-winning active suspension systems—ergoACTIV, ergoACTIV XP, reACTIV and reACTIV XP—are unparalleled in comfort, efficiency and load transfer. Because the shoulder straps and hipbelt move with you, friction and hot spots are eliminated. The pack’s load stays perfectly balanced at all times—without adjustment—and allows your body to move naturally in any direction. This results in a more efficient, comfortable, longer stride—meaning you can cover more ground, more quickly.


Tech Specs

Volume :  
[M] 75 L (4,577 cu in)
[L] 77 L (4,699 cu in)
Average Stock Weight :  
[M] 2,180 g (4 lb 12 oz)
[L] 2,200 g (4 lb 13 oz)
Materials :   400d polyester twill, 420d nylon twill

Recommended Use


Rated 4.5 out of 5 by 11 reviewers.
Rated 5 out of 5 by great suspension system This pack has the best suspension of all the high class giant bags I've carried in the last 25 years. After using this pack everything else feels like a walking backboard evacuation. The shoulder and hip motion is great for balance in steep talus and promotes good circulation in your neck and hips when spending long days on the trail. August 18, 2014
Rated 3 out of 5 by Good Effort but no thanks Returned with tags on. Waistband webbing much too narrow, all webbing used seems too thin. Excellent attachment feature with waistband at the back, freeing hips. Zippers stiff. The main bag is so narrow it barely holds a stuffed sleeping bag in the bottom. Pack appears best for very new light-weight small density gear. I'll stay with my 30 yr old internal framed older pack, ugly but honest.... August 2, 2014
Rated 3 out of 5 by good pack except for the zippers I bought this pack 3 weeks ago to use on 5-6 day hiking treks and i have all ready done two as i am a guide in the Hornstrandir wilderness nature reserve in the north west of Iceland. I like every thin about it except for the zippers. It is nicely padded and it can carry a good load but the zippers... you really need to be in your best "Zen" mode to operate them, and you must avoid all tension on the zippers. so you can not really stuff it with your gear and just zip... zip with care and tenderness. i guess the idea with those zippers is to make the pack water proof but its not really water proof with a busted zippers. Luckily i have managed to fix them in the rain with counting to ten, and applying tender love and care and happy thoughts.... July 26, 2014
Rated 5 out of 5 by Very comfortable and functional I just finished 25 miles in 2 days on a rough trail with this pack and it performed very well. As always with black diamond, the pack is well-made, design is well-thought-out and functional. Buckles and zippers work well. I'll never use another pack without the ergo suspension system ( I now own 3 BD packs). May 26, 2014
Rated 5 out of 5 by Love it. Love this pack. It carries exceedingly well, the stories of comfortable hips are true, compresses well, has classy features like the smooth webbing straps a sweet outer pocket, and full access to the inside through the outer full zip, and it does seem significantly water resistant thus far. The only weak point I've experienced is that the zipper on the brain/top compartment can split open if the brain is overly stuffed and you're not pretty tender with it. Not a deal breaker for me. Just makes me more graceful... May 12, 2014
Rated 5 out of 5 by Good back for 1 to 3 day hikes I like the pack and how it fits. Very comfortable. February 17, 2014
Rated 4 out of 5 by Heavy, but comfortable and rugged; zippers need work I returned this pack without even taking it out on the trail for a real test run because the BD return policy didn't allow me to return for a full refund if the tags were even removed. But basically, it was a heavy but comfortable pack when fully loaded and jogged around the house. The main problem for me was the size was too small, the zippers were not easy to use (pretty hard to move), and I couldn't be 100 percent about the suspension system without a trail run. February 1, 2014
Rated 5 out of 5 by Great pack for long trips I initially bought this pack because of the front zipper for easy access to my climbing gear, and because of the amount of space that is has for long trips. I was also a bit curious (and later extremely impressed) on how the active suspension system would work but needless to say I was a little skeptical due some other companies attempts to incorporate this idea into their systems. My first real test with the Mercury was a spicey hike to a spire that my partner and I planned to climb in Sedona Arizona. The approach was a long forth class hike to get to the base of this climb. Needless to say the pack preformed great. The shoulder straps moved with me as I was climbing, the pivoting action of the hip belt let me move freely but at the same time held the load firmly on my back. Most of all it gave me more confidence that the heavy load wouldn't shift and through me off balance when I was moving up this tricky wash. Well done BD. January 29, 2014
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