Hennessy Hammock  Expedition Asym Zip Hammock

$169.95
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This comfortable, asymmetric hammock has a side entry, double-slider zipper and large, protective rainfly that make it perfect for those who like to travel light.

Color: Hunter Green
Size: One Size
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Location Image for Expedition Asym Zip Hammock
Location Image for Expedition Asym Zip Hammock

Features

  • Asymmetric hammock bed improves comfort; asymmetric rainfly improves coverage
  • Provides comfort for those up to 6 ft. and 250 lbs., with more room for shoulders at one end
  • Strong #10 zipper features double sliders for easy adjustments to the hammock and mesh
  • Entry is from the side on this Hennessy model
  • Patented integral ridgeline maintains the same comfortable shape every time to keep your back straight and level when resting on the diagonal
  • No-see-um mesh provides excellent insect protection and ventilation, and will deflect wind to provide a calm space inside
  • Waterproof polyester ripstop rainfly may be tilted to any angle, rolled up above, removed or used separately; large rainfly offers ample protection
  • Nifty gear pocket slides on the ridgeline and stores out of sight behind your head
  • Suspension system includes 10 ft. long, 1500 lb. test low-stretch polyester core ropes with polyester cover
  • Complementary polyester webbing straps are attached to the end of the suspending ropes to protect the tender bark of trees and provide greater span for the ropes
  • Hammock folds into an open-air lounger / chair or can be used on the ground as a tent when paired with your hiking poles

Imported.

View all Hennessy Hammock Hammock Tents

Technical Specs

Best Use

Backpacking

Seasons

3-season

Sleeping Capacity

1-person

Weight Capacity (lbs)

250 pounds

Minimum Trail Weight

2 lbs. 13 oz.

Packaged Weight

2 lbs. 13 oz.

Packed Size

7 x 10 inches

Floor Dimensions

100 x 48 inches

Canopy Fabric

Polyester no-see-um mesh /oxford nylon

Rainfly Fabric

Ripstop polyester

Reviews
57 reviews with an average rating of 4.4 out of 5 stars

Ratings Snapshot

Product Rating

46 out of 52 (88%) reviewers recommend this product

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Average Customer Ratings

Ease of Use

Difficult to useVery easy to use

Most Helpful Favorable Review

5 reviews with an average rating of 3.0 out of 5 stars
Good with a few pitfalls
splyke
12 years ago
I received this as a gift a few years ago and have gone on several backpacking trips with it. Good things: It's super easy and fast to setup and take down (once you get the hang of the knots). If you have the snakeskin's then cleaning up camp takes about 30 seconds. It's pretty lightweight compared to tents. You can hang it in a variety of areas where you just can't put a tent. I backpack a lot in the Catskills and you can camp as long as you're well off the trail, but you can't always find a spot without rocks and roots. This hammock takes that element out of looking for a campsite. You also don't have to worry about damp/muddy ground or other ground related issues with choosing a campsite. Steep slopes are no problem as long as the trees are big enough and you can find two that will set you up at the right angle (don't forget you're on a slope in the morning though). It hunkers down great in the rain, I have spent hours in it and as long as you hung the rain fly correctly you don't get hit with a drop, and don't have to worry about flooding as much or muddy ground or water seeping in through the tent seams. Maybe during monsoons you might have water running down the ropes, but I've never had this problem in heavy rains. Also if you practice you can set the rainfly up, and then set the hammock up underneath and keep everything 100% dry while you do it. Times when it's a wash: It's lightweight that's true, however I've had to carry an extra sleeping bag some nights because the convection currents make it get colder underneath. Ill sleep inside a 15F rated sleeping bag inside a 40F rated on nights when it was 32F or below and I'd be comfortable. It's not terribly cold as long as you carry the extra weight. Also you have to figure that the rainfly and some tent pegs and the snakeskins and the pouch. It's more than 2 lbs, I'd say more like 3 once you've got everything together for it. It saves on weight but you kinda have to carry more weight, so I'd say in the weight department it's a wash between this and a lightweight backpacking tent. Another time when it's a wash is if you think about the environmental impact. It's true that setting up ground tents in the same spot can degrade the forest, and this doesn't do that. However the rope and straps can hurt the bark if you're not careful. That's why despite it being more friendly to the ground foliage, there is the possibility of it hurting a tree. Kinda not so good stuff: Well you can't change you're clothes in it. (it's always the little things you forget!) Maybe if you're small and good at Yoga but I'm 6 foot 240 lbs and I look like a dying caterpillar that has been stabbed with a hot poker when I'm trying to wiggle out of my pants into a new pair. I've given up trying to maneuver around in the thing, and use it primarily just as a sleeping spot. I just change my clothes standing outside, as it takes so much less time and less cramping and pulling muscles. Also there is less chance of fitting gear inside this than any tent. I am almost maxing out the weight limit including clothes and sleeping bags and pad. There is no way I would try to hang my 40-50lb pack in here with me. I have to string that up with it's own rain protection for the night, and have to remember to bring everything into the hammock that I will need for the night. Another thing to consider is what you will do with your boots. I just leave them under me, however one time they almost washed away in a hard rain, and another time I found a lot of bugs crawling around in them. Also I was in the ADK by the marcy dam and was hitting up some of the peaks there solo. I could swear that the raccoon were messing with me and trying to walk out on the ropes in the middle of the night as I kept hearing things plucking the string, and then scurrying up the bark of the tree. I will tell you there is a definite fear-factor "get used to it" that you are going to have things walking and moving underneath you during the night. Obviously it's a thin piece of nylon and offers the same amount of physical protection as a tent which is a thin piece of nylon. However sleeping in this thing when you know stuff is crawling around under you sniffing you out and walking on your ropes in the middle of the night creeps me out. The next big problem is that since I'm a larger guy it's kind of a production for me to get into it and to get in a comfortable spot. I always take my boots off before getting in, then I have to get in the sleeping bag, zip it up wiggle all the way down. As I'm doing this I'm adding momentum to the hammock and it starts to sway, and can take up to an hour before it stops swaying. If I get uncomfortable and have to shuffle around it will start to sway again. Gotta get out to go to the bathroom? HA! The swaying isn't an enormous problem but if you do it in the dark you could get a bit seasick and want it to stop. There have been times when I've asked my camp mates to just stop me from rocking back and forth after I had gotten comfortable. A trick to getting comfortable. It seems that no matter how taught you make it, that you're always going to bow down a bit. I noticed that if I hung it with the head slightly higher, then in the middle of the night I would wake up piled by my feet. I'd have to slide back up during the whole night. If You hang it with the feet slightly higher your feet might go a bit numb if you don't move em, but at least you don't have to constantly be re-positioning yourself the whole night. You could hang it level but that's just too hard to figure out unless you get in and out and re-position it a bunch of times when setting it up. Other con: You gotta have trees. I almost took this on a hike that we went above the treeline. Also the trees have to be sturdy enough to support the hammock Some times up high in the mountains it's hard to find big enough trees that are tall enough that you can wrap this guy onto. This is why I only give 3 of 5 stars. It's a great idea, just takes some getting used to, and some changes in your camping/backpacking style.
splyke
Paramus, NJ
248 people found this review helpful

Most Helpful Critical Review

5 reviews with an average rating of 3.0 out of 5 stars
Good with a few pitfalls
splyke
12 years ago
I received this as a gift a few years ago and have gone on several backpacking trips with it. Good things: It's super easy and fast to setup and take down (once you get the hang of the knots). If you have the snakeskin's then cleaning up camp takes about 30 seconds. It's pretty lightweight compared to tents. You can hang it in a variety of areas where you just can't put a tent. I backpack a lot in the Catskills and you can camp as long as you're well off the trail, but you can't always find a spot without rocks and roots. This hammock takes that element out of looking for a campsite. You also don't have to worry about damp/muddy ground or other ground related issues with choosing a campsite. Steep slopes are no problem as long as the trees are big enough and you can find two that will set you up at the right angle (don't forget you're on a slope in the morning though). It hunkers down great in the rain, I have spent hours in it and as long as you hung the rain fly correctly you don't get hit with a drop, and don't have to worry about flooding as much or muddy ground or water seeping in through the tent seams. Maybe during monsoons you might have water running down the ropes, but I've never had this problem in heavy rains. Also if you practice you can set the rainfly up, and then set the hammock up underneath and keep everything 100% dry while you do it. Times when it's a wash: It's lightweight that's true, however I've had to carry an extra sleeping bag some nights because the convection currents make it get colder underneath. Ill sleep inside a 15F rated sleeping bag inside a 40F rated on nights when it was 32F or below and I'd be comfortable. It's not terribly cold as long as you carry the extra weight. Also you have to figure that the rainfly and some tent pegs and the snakeskins and the pouch. It's more than 2 lbs, I'd say more like 3 once you've got everything together for it. It saves on weight but you kinda have to carry more weight, so I'd say in the weight department it's a wash between this and a lightweight backpacking tent. Another time when it's a wash is if you think about the environmental impact. It's true that setting up ground tents in the same spot can degrade the forest, and this doesn't do that. However the rope and straps can hurt the bark if you're not careful. That's why despite it being more friendly to the ground foliage, there is the possibility of it hurting a tree. Kinda not so good stuff: Well you can't change you're clothes in it. (it's always the little things you forget!) Maybe if you're small and good at Yoga but I'm 6 foot 240 lbs and I look like a dying caterpillar that has been stabbed with a hot poker when I'm trying to wiggle out of my pants into a new pair. I've given up trying to maneuver around in the thing, and use it primarily just as a sleeping spot. I just change my clothes standing outside, as it takes so much less time and less cramping and pulling muscles. Also there is less chance of fitting gear inside this than any tent. I am almost maxing out the weight limit including clothes and sleeping bags and pad. There is no way I would try to hang my 40-50lb pack in here with me. I have to string that up with it's own rain protection for the night, and have to remember to bring everything into the hammock that I will need for the night. Another thing to consider is what you will do with your boots. I just leave them under me, however one time they almost washed away in a hard rain, and another time I found a lot of bugs crawling around in them. Also I was in the ADK by the marcy dam and was hitting up some of the peaks there solo. I could swear that the raccoon were messing with me and trying to walk out on the ropes in the middle of the night as I kept hearing things plucking the string, and then scurrying up the bark of the tree. I will tell you there is a definite fear-factor "get used to it" that you are going to have things walking and moving underneath you during the night. Obviously it's a thin piece of nylon and offers the same amount of physical protection as a tent which is a thin piece of nylon. However sleeping in this thing when you know stuff is crawling around under you sniffing you out and walking on your ropes in the middle of the night creeps me out. The next big problem is that since I'm a larger guy it's kind of a production for me to get into it and to get in a comfortable spot. I always take my boots off before getting in, then I have to get in the sleeping bag, zip it up wiggle all the way down. As I'm doing this I'm adding momentum to the hammock and it starts to sway, and can take up to an hour before it stops swaying. If I get uncomfortable and have to shuffle around it will start to sway again. Gotta get out to go to the bathroom? HA! The swaying isn't an enormous problem but if you do it in the dark you could get a bit seasick and want it to stop. There have been times when I've asked my camp mates to just stop me from rocking back and forth after I had gotten comfortable. A trick to getting comfortable. It seems that no matter how taught you make it, that you're always going to bow down a bit. I noticed that if I hung it with the head slightly higher, then in the middle of the night I would wake up piled by my feet. I'd have to slide back up during the whole night. If You hang it with the feet slightly higher your feet might go a bit numb if you don't move em, but at least you don't have to constantly be re-positioning yourself the whole night. You could hang it level but that's just too hard to figure out unless you get in and out and re-position it a bunch of times when setting it up. Other con: You gotta have trees. I almost took this on a hike that we went above the treeline. Also the trees have to be sturdy enough to support the hammock Some times up high in the mountains it's hard to find big enough trees that are tall enough that you can wrap this guy onto. This is why I only give 3 of 5 stars. It's a great idea, just takes some getting used to, and some changes in your camping/backpacking style.
splyke
Paramus, NJ
248 people found this review helpful

Customer Images

Tristan
Seattle, WA
Rated 5.0 out of 5 stars

Love it!

11 years ago

By far, this is the most comfortable sleeping experience I've ever had in the backcountry. Fed up with sleeping on the ground, I finally decided to buy this and totally love it. It's comfortable and I've never slept so good. The rainfly really sets it apart from other hammocks. Just pick any trees like 8-12' apart or so, and it sets up in about the same time as any other tent. I really like that I have more options on where to place it - I don't have to find a flat spot. I just have to have a spot with trees - which isn't usually a problem say, below 8,000' here in the Pacific NW. My one mistake was that I didn't realize that I would still need a sleeping pad with it - for insulation. I spent a couple of nights on one trip too cold. I've tried several options for this, and have found that a basic foam pad, placed inside the sleeping bag (yes, inside, so it can't slip out from under so easy in the hammock), is an awesome solution. This will certainly be my tent of choice for all backpacking below the tree line.

Yes , I recommend this product
Helpful?
FL Gear Guy
Jacksonville, FL
Rated 5.0 out of 5 stars

Great Shelter

3 years ago

I have had this hammock for several years. I also own some ENO hammocks. Both are high quality and durable. But when it comes to backpacking my Hennessy is my first choice. The combination of a bug fly, low weight (not UL), and rain fly just make sense. As I have gotten more experience I have made slight adjustments to make it a better hammock for me. This includes some reflective cord, upgraded stakes, climbing rings and some cold weather insulation. My only critique is that is it a little heavier than I would like but that is in part to the durable construction. Overall, a great investment and highly recommended. It makes a good night sleep in the bush possible.

Age:55–64
Weight:200–225 lbs.
Height:5'11"
Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use
Helpful?
Mike G
Lehigh Valley, PA
Rated 5.0 out of 5 stars

Exceptional comfort

3 years ago

This asymmetrical design hammock provides more comfort and space to quickly string up on the go. Living in Rockslyvainia where finding space for a tent seems to be a struggle? This hennessy makes through hiking much more efficient with leaving no footprint behind.

Age:35–44
Weight:200–225 lbs.
Height:5'10"
Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use
Helpful?
Donnyboy
Bennington VT
Rated 5.0 out of 5 stars

Almost perfect

5 years ago

Hennessy’s Expedition Asym almost perfect for wilderness canoe tripping - light, quick set up, weatherproof, uneven ground friendly, very comfortable for a week - but three things need to be adapted to: 1) must find some other place to put gear you don’t hang, 2) lowers sleeping bag warmth because no insulation below, and 3) impossible to change clothing within, unless you are a contortionist. Still, much better than a tent. Also bought Explorer Deluxe; 190# dad in Explorer, daughter in Expedition. Tried both and wished had only bought Expedition - Explorer Deluxe bigger/deeper than necessary for me. Expedition was so comfortable my daughter slept it in it at home for the month before returning to college. Webbing straps (included) essential to have zero impact on trees.

Yes , I recommend this product
Helpful?
Marc S
Olympia, WA
Rated 5.0 out of 5 stars

Love It!

12 years ago

I've used my Expedition on several backcountry trips to Mount Rainier National Park and Olympic National Park. Forget about trying to find a flat patch of ground, clearing it of sticks/stones/debris to get comfortable! Find two trees, tie it up, get good sleep. These just saved my butt Memorial Day Weekend camping out at Mora in the Olympic National Park. Who would have thought it would rain in a rainforest, right? We slept high and dry with no worries. For backpacking, you will realize a significant decrease in both weight and space if you switch to a Hennessy, which for me is huge. Highly recommended.

Yes , I recommend this product
Helpful?
winter mutt
Folsom, Ca.
Rated 5.0 out of 5 stars

The best

3 years ago

Have a number of hammocks, for backpacking this is my choice. If you watch videos online you will eventually figure out the hanging method. The biggest knock against H.H.s is the hanging method and insulation issues. IMHO once you figure out the Hennessy method of hanging you might prefer it. Insulation is another matter. These hammocks work better above 60F. If you go below 60F you will need to buy insulation. In a way, this is not a knock on Hennessy as all hammocks need insulation below 60F, but if you backpack above 7000 feet like i do, then this package alone is not going to work for you, you will need to spend more $$.

Age:65–74
Weight:150–175 lbs.
Height:5'9"
Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use
Helpful?
richlewis469
Dallas, TX
Rated 5.0 out of 5 stars

Great for Scouts in storm!

14 years ago

I purchased this for my Son who is a Webelos Scout, after falling in love with one myself. Set up was a breeze for him, 2 trees, 2 ropes, and 4 ground stakes. He was ready for anything Mother Nature had in store for the weekend. Turns out Mother Nature would put it to the test, a series of storms moved through - 2.25 inches of rain, high winds, and a funnel cloud to the east. After the storms passed we went back to check the camp, and as 2/3 of the families were packing up wet gear, our hammocks and gear were dry. We got to spend an extra night camping thanks to the Hennessy Hammock design. My son loved it and brags about how great his camp was. Purchasing the ZIP version is definitely a smart move, and the manufactures Snake Skins make packing up a snap!

Yes , I recommend this product
Helpful?
Imps
NJ, United States
Rated 5.0 out of 5 stars

Lightweight, convenient, a bit unnerving

7 years ago

The setup takes some getting used to. The first time I used it, it took me three tries to set it up at the right height and angle, especially because the asymmetric design makes it tough to see if you've lined everything up correctly. Once I did get it right, it was honestly one of the most comfortable night's sleep I've ever had while camping. However, the second time I used it, a bear came into our campsite and I've never felt so exposed in my life. I wasn't sure if I could get out of it fast enough to avoid feeling like a helpless dangling burrito. The bug screen and rain tarp work great though.

Yes , I recommend this product
Helpful?
whoislature
New York, NY
Rated 5.0 out of 5 stars

I love this hammock!

4 years ago

I’ve had this hammock for about a year now and grant it, I don’t make a ton of time to get outdoors as much as I want, I’ve hung this up and used it several times - I LOVE this thing! It’s an easy set up, durable, it held under a hard storm (slept like a baby that night too), perfect for one person going out there to explore nature! Key feature that I love is the mosquito net that zips up and encloses you. Still allows me to see the stars at night yet keeps me from getting eaten alive by wild bugs lol. Overall, love this hammock! Can’t wait to get my snakeskins and underquilt for it! May even upgrade it. can’t go wrong with this one as a starter! Not to mention, it looks super cool!

Age:25–34
Weight:150–175 lbs.
Height:5'10"
Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use
Helpful?
Texan Dan
Houston, TX
Rated 5.0 out of 5 stars

Best hammock out there!

13 years ago

I love this hammock, way better than a ENO. For the price you pay you get everything you need: hammock, bug fly, rain fly. Extremely comfortable to sleep in, and you can set it up anywhere you can find two trees. Not too heavy, but not too light. Everybody needs a Hennessy

Yes , I recommend this product
Helpful?
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