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Delivering an ideal balance of space, strength and compactness in single-walled expedition tents, the Mountain Hardwear ACI 3 is built to endure the extreme conditions of high-altitude environments.

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Features

  • Evolution Tension Archâ„¢ features sleeves of strong, nonstretch fabric that reinforce and stabilize the pole structure, maximizing strength while remaining lightweight
  • Integrated vestibule provides adjoining storage and food prep area outside of main living space, making it easier to take the comfort of home 8,000 meters up
  • Sleeved-pole design adds stability, protects poles and makes pitching easier
  • Integrated vestibule provides room for gear storage inside tent or additional living space
  • Improved cross-ventilation is enabled by 4 adjustable zippered vents plus a full mesh door
  • Color-coded poles and webbing at stakeout points for easy set-up
  • Multiple guyout points plus self-equalizing guyout anchors on side walls
  • 6 mesh pockets for interior storage
  • Snow port in floor allows an exit point for accumulated snow
  • Reflective accents for added visibility.
  • Industry-leading DAC Featherlightâ„¢ NSL poles
  • Includes high-quality DAC J-stakes
  • Free of flame-retardant chemicals, this tent may not adhere to CPAI-84
  • Closeout

Imported.

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Technical Specs

Best Use

Mountaineering

Seasons

4-season

Sleeping Capacity

3-person

Minimum Trail Weight

7 lbs. 1.9 oz.

Packaged Weight

8 lbs. 1.1 oz.

Packed Size

Unavailable

Floor Dimensions

110 x 60 inches

Floor Area

45.8 square feet

Vestibule Area

45.8 square feet

Peak Height

41 inches

Number of Doors

1 door

Number of Poles

4

Pole Material

DAC Featherlight NSL

Canopy Fabric

50-denier ripstop nylon (10,000 mm)

Floor Fabric

30-denier ripstop nylon (4,000 mm)

Rainfly Fabric

50-denier ripstop nylon (10,000 mm)

Footprint Included

No

Design Type

Freestanding

Reviews
9 reviews with an average rating of 3.9 out of 5 stars

Ratings Snapshot

Product Rating

5 out of 7 (71%) reviewers recommend this product

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Customer Images

Scotton2wheels
WNY
Rated 5.0 out of 5 stars

Camping on 2 wheels

1 year ago

I’m a fan of Mountain Hardware gear and liked the idea of a 4 season, single layer tent with the vestibule area. Thinking it would be nice to have on my 2 wheeled camping adventures in the off seasons. I haven’t had the opportunity to get out and use it as it’s designed for, but I did set it up inside. I wish the packed size was included in the description as I wouldn’t have purchased it. But after setting it up and being impressed with the size, ease of setup and how the dual door vestibule area was what I need when the weather is not agreeable. I decided that I could make the packed size work. The weight is equal to any of my other tents that are dual layered.

Age:55–64
Yes , I recommend this product
Helpful?
Tom
Denver, CO
Rated 5.0 out of 5 stars

If you want to be cozy in harsh conditions this is your tent

4 years ago

For all weather conditions the ACI 3 will not disappoint. We got this tent for our winter campouts with the Scout Troop and the first night snowed 6". It was chilly but super dry, and with two of us in there in our mummy bags were nice and cozy even with winds. Condensation did accumulate on the inside - something to consider for ventilation. All in all we are stoked at the construction and ease of set up / tear down.

Yes , I recommend this product
Originally posted on mountainhardwear.com
Nikhil
India
Rated 5.0 out of 5 stars

The Perfect 3-Person mountaineering tent!

1 year ago

Got this 3 Person tent for a Himalayan Expedition in India. The days I was sleeping in this tent felt like I was glamping. Huge space inside the tent, easy to set up and more importantly it’s a bomber structure. Good ventilation and the best part is the shoe space inside the tent allows the tent to stay clean whilst the shoes stay warm for the next morning’s summit attempt.

Yes , I recommend this product
Originally posted on mountainhardwear.com
gasser
Shawangunks, NY
Rated 3.0 out of 5 stars

great for winter, not much else

1 year ago

This is a 1.5 season tent. The ventilation is terrible, it becomes an easy bake oven with 3 people, and my family almost suffered heat exhaustion/heat stroke in moderate summer temps. We will only be using this for very late autumn - very early spring from here forth.

Age:35–44
No, I do not recommend this product
Helpful?
RealreviewDH
Michigan
Rated 5.0 out of 5 stars

ACI 3 P tent

5 years ago

It’s very good light weight tent. Make sure to leave open the vents when packing up or the tent acts like a giant air bag. Poles and steaks are quality as well. The zippers a very nice and opening and closing the doors and one mess door is very easy. I used this tent in 20-30 degree weather 5 times now. Each time the tent kept all the rain/snow out but due to the tents construction, condensation is a real factor. (I recommend a pack towel, as water will bead up above and below you lightly.) but don’t let that discourage you from purchasing this tent, it drys very quickly in the sun. I have a canvas tent and deal with the same thing. (Condensation is apart of the camping game) Also you maybe thinking about the sleeves for the poles, I like them, find them to be more durable in 4 season use (rather than fragile plastic clips) This tent is a rock and is definitely build to take you anywhere SUN/RAIN/orSHINE.

Yes , I recommend this product
Originally posted on mountainhardwear.com
suraj
Indian Himalaya
Rated 5.0 out of 5 stars

bomber, comfortable, and ventilated

1 year ago

This tent was an oasis of comfort at basecamp during our big wall first ascent expedition in the Himalaya at 4500m. It was warm and simultaneously would never form condensation on the inside because of the 4 adjustable vents. The zip in the floor was also great for keeping the dirt from boots off the tent floor.

Yes , I recommend this product
Originally posted on mountainhardwear.com
Schoolyards
SoCal
Rated 1.0 out of 5 stars

Might be good, but I'll never know!

1 month ago

I ordered this tent with an expected arrival date on Friday. I was leaving for my trip on Monday. I received a cancelation email from REI Wednesday night. To say sorry, i received a 15% off coupon, as if that would help me now! Extremely poor customer service.

Age:55–64
No, I do not recommend this product
Helpful?
Luke D
Rated 5.0 out of 5 stars
1 year ago
Originally posted on ExpertVoice.com
Anonymous
Rated 1.0 out of 5 stars
2 years ago
Originally posted on mountainhardwear.com

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