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Zpacks Altaplex Review – Great Roomy Shelter! | Average Hiker

Zpacks Altaplex shelter front view

Zpacks Altaplex Review

The Zpacks Altaplex is a durable Dyneema shelter built for tall hikers. This shelter is easy to set up and adjust in bad weather, and I stayed dry using the Altaplex in some ferocious storms on the Colorado Trail and in constant steady rain on the Appalachian Trail.

If you are looking for a roomy, weather-resistant shelter then the Altaplex is definitely worth considering.

This article takes you through the features below and then describes some of the pros and cons of the shelter.

Zpacks Altaplex – Snapshot

Zpacks Altaplex | Tall Backpacking Tent

The Zpacks Altaplex is a durable, Dyneema shelter designed for tall hikers that need a little more space. This shelter held up surprisingly well for me on the Colorado and Appalachian trails in constant rains and ferocious storms, keeping me dry in pretty harsh conditions.

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  • Set-up – I was suprised at how easy it was to set up the Altaplex. It took one try for me to get it nice and tight.
  • Space – I am 5’11 and there is plenty or room for me and my gear.
  • Air Flow – If I keep the door open, this combined with the vent at the top, and air flow underneath, result in much less condensation than my older Hexmid.
  • Weather – The Altaplex sheds wind better than I expected with it being so tall. Wind and rain (and some was pretty severe) are not an issue. I always stay dry.


  • Pole Jack – Standard Hiking poles are not usually long enough. Zpacks was out of stock, so I ordered mine from Mountain Laurel Designs and it worked great.
  • Price – Like most Zpacks shelters, or any Dyneema shelter, it is expensive.

Ease of Set-Up
Weather Resistance

Rating Explained

You can’t beat 15.5 oz for an oversized shelter anywhere, and Dyneema is some of the most durable fabric I’ve used in any shelter. The Altaplex is very easy to set up but requires an extra pole jack. It is highly weather-resistant but compared to free-standing tents it is not a warm shelter and there is still more condensation than you will find in a free-standing tent. All that said, it is a premium, well-made shelter that will last for years, and I highly recommend it.


Zpacks Altaplex – Specifications

  • Weight: 15.5 oz
  • Floor Width: 36″
  • Floor Length: 90″
  • Shelter Length: 100″
  • Packed Size: 6″ x 12″
  • Peak Height: 58″
  • Width w/vestibule: 69″
  • Vestibule Space: 20.75″
  • Zipper Entry Height: 36″

My Shelter Requirements

Below are my shelter requirements.

  • Light Weight – Lightweight to reduce fatigue and injury is important on long hikes.
  • Ease of Set-Up – I usually hike up until dusk, and I want to set up quickly in the dark. Setting up quickly in bad weather is also important.
  • Reduced Condensation – Condensation is irritating and can be dangerous in cold weather if it gets your Down gear (Sleeping Bag, Jacket) wet. I work to minimize condensation as much as possible.
  • Weather Resistance – The ability to withstand bad weather, especially rain and wind.

Tent Stakes

6.5 Red Hook Tent Stakes

These are the tent stakes I use. They work well in rocky, hard ground (Western Trails) and are easier to find in tall grass and dry leaves at dusk and dawn.

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Tent stakes are not included with the Altaplex, so consider this when purchasing your stakes.

At Dusk, Titanium disappears.

You may detach your line and turn to find your tent stake in the high grass, and it will have disappeared.

When the wind flips out your line and the tent stake goes flying, and you go to find it in the brush – GONE.

Zpacks has several styles of tent stakes, and I’ve used them all. If purchasing tent stakes, I get the 6.5 Red Tough Titanium Tent Stake.” It is a little larger than the 6.0 size and works well in dry, rocky ground.

Zpack Altaplex Review – First Glance

Out of the box, the Altaplex looks almost identical to my Hexamid, other than my new Altaplex being “Green Opaque.” The Altaplex is heavier than my Hexamid, coming in at 15.5 ounces. The Hexamid is 13.5 ounces or two ounces lighter, but I’m fine with the extra 2 ounces for more room and less condensation.

Altaplex packed size

Altaplex Easy To Set Up/Pack Up

Some people find the Zpack shelters more challenging to set up fast, but I never have. Like any other tent, I have to practice a couple of times, but the set-up is fast after a couple of practice pitches. I am pleased to see the Altaplex sets up quickly – even faster than the slightly smaller Hexamid, due to the more efficient cut of the Altaplex.

Tarp-tents are very easy to set up in the rain while keeping gear relatively dry. I lay them out, quickly stake out the front two corners and the back center, pop in the hiking pole, and up it goes. They are faster and keep my gear drier than double-walled tents while I set them up.

Shelter front view
Shelter Back View

Pre-tied Lines

The lines are pre-cut, and both the lines and locs are already installed, which is nice. Out of the box, the lines Zpacks uses are about three times the thickness of what I use on my Hexamid, so if you want to shave a couple of grams, then use thinner tie-out lines. My Hexamid has held up to some brutal winds with much thinner lines.

The Zpacks label for the Altaplex is on the front corner, so I don’t have to search for the front of the tarp tent. It is easy to start with the right corner and work from that point.

Corner Tieout

Zipper Ties

The zippers all have small neon ties attached. These ties are easy to find at night when you are going in and out of the shelter.

Neon Zipper Tie

Altaplex Pack Up

Although the Altaplex uses a thinner material than my older Hexamid (.55 oz/sqyd Dyneema® Composite Fabric), I can tell no difference. The Dyneema is still the same tough fabric that requires no footprint. I have used an air mattress thousands of miles with the Hexamid and never once needed a footprint, even in desert environments.

Because of the lighter fabric, one advantage of the Altaplex is that it is easier to pack up. I can easily fold the tent up and roll it into a tight bundle. I have to stuff my stiffer Hexamid into my ULA Ohm 2.0 pocket, but I can roll up my Altaplex and easily slide it into the net pocket.

Dyneema fabric does not compare to Sil-nylon. Sil-nylon is easier to pack than Dyneema. The Dyneema on the Altaplex becomes more pliable over time, though, and I have gone from folding it to stuffing it into the net pocket on my backpack.

Zpacks Altaplex Review – Comfort/Convenience

Besides being roomy, the Altaplex has several conveniences. It is roomier than my Hexamid, and the tent’s length and height make it easier to lay down and sit up without touching the walls with my Down Jacket.

That said though, I still brush my jacket and sleeping bag against the walls if the tarp tent is not set up to its full height.

I also put my rain jacket over the foot of my down sleeping bag/quilt, which I do in every tent or tarp with a single wall. I always protect my Down quilts and sleeping bags regardless of the shelter I’m using.

In addition to the length and height, the width makes this a very comfortable shelter for one person. There is plenty of room to store my gear on either side and at the foot of the tarp-tent.

Zpack Altaplex Corner View
Plenty of Room


The Altaplex has two storm doors that are easily tied up when not in use. They also have a pre-tied line and attachment to secure one or both doors when being used.

The one thing I would prefer on the vestibule is a zipper, but these are not common anymore. The current vestibule flaps use a toggle and loop attachment, which does not firmly secure the vestibule. I have had a small bit of water leak in during some exceptionally long hard rains where the flaps come together. This does not affect the interior of the Altaplex but sometimes leaves the ground damp under that part of the vestibule.

The vestibule has plenty of room, but I bring my gear inside the shelter. Animals – porcupines, squirrels, marmots, deer, etc. have taken or eaten my socks, shoes, and hiking pole handles in the past. Hiking 40 miles with no socks, one shoe, and a Croc is not much fun.

The hiking pole on the Altaplex is outside the tent, but I prefer it inside the shelter, as it is in my Hexamid. I often cook under the vestibule when it is raining, and the pole is a little bit of a hindrance, although not a show stopper.

Altaplex with vestibule
Vestibule Clip

Interior Pouch

The Altaplex has an interior pouch. There is no more fumbling around in the dark for my headlamp, phone, knife, etc. These little conveniences get me excited since I am a light sleeper and often wake up during the night to read or study maps.

Zpacks includes a piece of repair tape with the Altaplex. I leave it in the shelter pouch; otherwise, it will get lost amongst the other miscellaneous items in my stuff sack.

Pouch Inside the Altaplex

Zpacks Altaplex Review – Materials/Construction

The Altaplex uses a thinner DCF material than my Hexamid, but as stated I notice almost no difference. It is thick enough to provide floor protection, and the Opaque with a splash of green color offers sufficient privacy.

The Altaplex is water-proof. The shelter holds up well in fierce storms, and constant rain, with no leaks. When it is windy, I set it up closer to the ground to block splash.

The 8-inch tall bathtub floor is held up by adjustable lines around the inside of the tarp tent. These are easy to adjust and set at optimal locations, attached to the tarp. The floor itself is thick enough to protect my sleeping pad. Not having to use a footprint has always been one thing I like about Dyneema shelters.

Backsplash is not an issue with the Altaplex, but I’m always careful about setting up the tarp tent. If possible, I try not to set up in low-lying areas or on especially hard-packed ground.

Altaplex Bathtub Floor Attachment

Tarp Overhang

The overhang on the Altaplex is adequate but is narrow down near the foot of the shelter close to the corners. Because of this, there have been a couple of occasions where the netting has pushed out past the edge of the over-hang, and I was woken up to some water in the tarp tent.

This was my fault, though, because I laid gear up against the sides. Pay attention to where you put your equipment, and this won’t happen.

Netting Overhang

Zpack Altaplex Review – Additional Observations

Durability & Conveniences

The Altaplex has about 600 miles of use and still looks like I just took it out of the box. Dyneema fabric is durable, and the Altpalex is no exception. Zpacks continues to produce high-quality tarp-tent shelters.

The Altaplex is a well-thought-out shelter. Conveniences like the improved tarp overhang, storm doors, interior pouch, pre-cut ties outs, and zipper ties are great to have in a 15.5-ounce shelter.


I have received some questions on how this shelter handles in windy conditions. This shelter is taller than the Hexamid, so I was also curious about wind, but have been pleased. If set-up correctly, using all the tie-out points, the taller Altaplex handles the wind well and is stable. There is some flapping in the wind, but no more than my Hexamid or Big Agnes Tent Fly.

Trekking Pole Length

My only other consideration when I purchased the tarp-tent was my trekking pole length. My Black Diamond Alpine Carbon Cork Poles were not long enough, so I needed a trekking pole jack. Zpacks was out of stock, so I ended up purchasing my trekking pole jack from Mountain Laurel Designs. I bought a six-inch jack that has worked out well.

Zpack Altaplex Review – Post Hike Review


  • Set-up – the cut of the Altaplex, while similar to my Hexamid, has been improved. The Altaplex is faster to set up with a tight pitch and has more room than the Hexamid.
  • Room – there is plenty of space for me and all my gear inside the shelter.
  • Airflow – with more airflow, the Altaplex improved condensation issues and has less condensation than my Hexamid as long as I maximize its height.
  • Wind – The Altaplex holds up well in windy conditions as long as I used all of the tie-outs.


  • Hiking Pole Height – The Altaplex requires a hiking pole that extends to 56″. I use Black Diamond Alpine Carbon Cork poles, and they extend to 51″. Extending them past their usable length, I can reach about 53″.
  • Netting/Overhang – the netting is attached to the tarp’s edge, and the tarp does not extend far over the netting on the sides at the foot of the shelter. I put my backpack at the end of my shelter by my feet or on the side in the corner. There were two occasions where the pack pushed out the netting, and I woke up to puddles in the shelter where rainwater ran down the net and into the bathtub floor, so be careful with gear placement.
  • Warmth – you will not retain as much warmth as you will in a tent.
  • Vestibule – I prefer a zipper, but that would add weight.

Zpacks Altaplex Review – Would I Buy One Again?

The Altaplex is a well-made shelter. I would definitely buy one again.

I recently tested the Duplex. The Duplex is a pretty sweet 2-person tent at 19 ounces and a palace for one person. The difference for me between the two for me is the footprint.

Out west I would probably take the Duplex because there is usually plenty of room to set up. On the east coast I may lean more towards the Altaplex. The footprint is a little smaller which is sometimes works a little better in the more dense forests, specially the northeast.

Both are great shelters though, and you can’t go wrong with either one.

Average Hiker purchased this tent and does not write sponsored posts or receive compensation for reviews. When you purchase through links on this website, I receive a small commission at no additional cost to you. If you find this review helpful, please consider purchasing through the link above.

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8 thoughts on “Zpacks Altaplex Review – Great Roomy Shelter! | Average Hiker”

  1. What a very nice initial look at the Altaplex. The extra pics are a great addition. This is a new web site for me. I hope you will add some actual experience info once you get this item out on the trail. I look forward to using the camo version of this tent as soon as we can get out. Thanks

    1. Hi – thanks so much. It is a fairly new website, and still a work in progress, but I’m chipping away. I definitely do post hike updates on all the gear. I’m looking forward to taking the Altaplex out on the Colorado Trail at the beginning of August, and hopefully some smaller section hikes before then. Thanks for reading…

  2. Thank you so much for this detailed review. I just got one the same tent. But I have a question about setting it up. I have asked a lot of you tubers the same questions, but I don’t get any response. What I want to know is when you stick your pole inside or into that triangle thing do you stick it on the black pad? I got confused there because the black pad is inside a tent with mesh on it. Do I put pressure on the black pad with a mesh?

    1. I use a small jack that covers the tip of my hiking pole since the pole is not long enough. It adds about six inches of length. This end goes in the padding at the top or peak of the tarp-tent. The pole handle rests inside the tarp-tent on the mesh at the bottom. Hope this helps.

  3. When you pitch it with a slightly shorter pole than what Zpacks recommends, does this allow the walls to be closer to the ground than when pitched with a 56” pole? That would seem an advantage in really bad weather.

    1. I just got back from my Colorado Trail hike where I used my Altaplex. There were a few instances, in windy, rainy weather, where I did not use the 6 inch jack I purchased from Gossamer Gear to raise my hiking pole. This lowered the tent. The only disadvantage was that in these conditions there was also condensation on the inside of the shelter and the toe and of my quilt got a little wet from touching the wall. Honestly though, the Altaplex held up well in windy conditions and I probably could have gotten away with not lowering it.

  4. Thank you for an excellent gear review. I appreciate your time and effort in analyzing and reporting on this tent.
    I have a question about packing the Altaplex. Can it be packed loosely into a backpack, pressing it around other gear in the pack for space efficiency, or does it have to be stowed in a stuff sack? If the latter, can it be stuffed, or does it need rolling or folding? I have read very differing accounts of stowing the tent, but the consistent point is that the DCF is a stiffer material which makes it bulkier.

    1. I appreciate the feedback on the review – thank you. A couple of notes on the Altaplex.

      It is a stiffer fabric so when I first used it I would have to fold it and then put it in a stuff sack. After about 3 weeks on my recent Colorado Trail Hike it became loser and I began stuffing it in the stuff sack before sending home the stuff sack and just stuffing it in the outside pocket of the backpack.

      This means you could stuff it in your pack to fill void space, but just keep in mind that it is sometimes wet in the morning due to condensation – common for these types of shelters. This is especially the case on the more humid east coast.

      That said, my Altaplex stays drier than my Hexamid due to better air flow.

      Hopefully that helps…

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