Kammok Mantis Ultralight All-in-One Hammock Tent Review

Kammok Mantis Ultralight All-in-One Hammock tent Review

Kammok’s Mantis Ultralight All-in-One Hammock Tent (“Mantis UL”) is a  complete hammock shelter system that includes a hammock with an optional full-length zippered bugnet, integrated ridgeline, tarp, hammock suspension, and stakes that pack up together into a roll-top stuff sack for a total weight of 2 pounds, 3 ounces. The only thing you’ll need to add is your insulation, a top quilt, and a pad or underquilt, to have a complete sleep system.

Kammok Mantis Ultralight All-in-One Hammock

Comfort
Ease of Setup
Durability
Insect and Weather Protection
Versatility
Weight

Great Deal

The Kammok Mantis Ultralight All-in-One Hammock Tent offers a readily available, one-and-done hammocking system that is easy for new hammockers to use while still offering features, materials, and light weight that can be appreciated by a more experienced hanger.

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Specs at a Glance

  • Total Weight: Manufacturer’s stated weight: 2 lbs, 3 oz. SectionHiker tested weight: 2 lbs, 2.6 ounces.
    • Removable bugnet: 5.3 oz
    • Mantis UL body without bugnet (with continuous loops & 2 Mini Kanga Carabiners): 10.9oz
    • Tarp: 11.3 oz with 6 guylines with LineLoc tensioners and 2 ridgeline knotless hooks
    • 2 X Python 10 Ultralight Straps: 2.9 oz
    • 2 X partial-shock-cord wing guylines with LineLocs and knotless hooks: 0.4 oz each (0.8 oz total)
    • 6 X DAC J-Stakes: 2.3 oz total
    • Stuff sack (permanently attached to the hammock): 1.5 oz
  • Hammock Fabric: 20D nylon diamond ripstop with DWR and mesh bugnet
  • Hammock Dimensions: 120″ x 56″
  • Tarp Fabric: 15D nylon diamond ripstop nylon with PU/Silicone DWR
  • Tarp Dimensions: 136″long x 88″ wide (tapering down to 72″ wide at foot end)
  • Ridgeline length: 115″
  • Weight Capacity: 300 lbs
  • Sleep Capacity: 1 person
The Mantis UL tarp has catenary cuts for a tight pitch.
The Mantis UL tarp has catenary cuts for a tight pitch.

The total weight includes the hammock, bugnet, ridgeline, suspension, tarp with guylines, wing guyouts, 6 stakes, permanently attached stuff sack, and carabiners, and is the real-life weight you can expect to carry using the Mantis UL system as intended. Kammok advertises a trail weight of 1 pound, 15.5 ounces, but this doesn’t include any stakes, the stuff sack (which is permanently attached), or the side wing guyouts. It’s always good practice when you see a trail weight advertised to find out exactly what’s being included and what’s being left out, especially when comparing the specs of multiple shelters.

The Python UL 10 straps are split webbing with joiner pieces to save weight while still protecting the tree.
The Python UL 10 straps are split webbing with joiner pieces to save weight while still protecting the tree.

Hammock Suspension

The Python UL 10 straps have a daisy chain for the hammock to clip into securely, are 10 feet long, and feature 2 rows of narrow (2 cm wide) webbing 2 inches apart, connected with small cross pieces of webbing to save weight while still distributing weight over a broader area of the tree to comply with Leave No Trace principles. The Mantis UL uses carabiners to attach to them.

The hammock is hung by clipping carabiners into the daisy chain straps
The hammock is hung by clipping carabiners into the daisy chain straps

Removable Bugnet

One of the major benefits of the Mantis UL is its modularity, specifically, the ability to completely remove the bugnet and have an open hammock or add the Winter Barrier in colder weather. The bugnet attaches to the hammock with four zipper sliders: two at each end which meet on the sides, closer to the head end than the foot end to make it easier to open from a lying-down position.

The lower section of mesh can be held open by a toggle and loop on either side.
The lower section of mesh can be held open by a toggle and loop on either side.

This also means that, whenever the hammock is zipped shut, the zipper sliders are always in the exact same place, which is convenient for locating them in the dark. The hammock body and bugnet zipper sliders share a color scheme to take the guesswork out of orienting the pieces correctly; the head end is orange, and the foot end is gray. The small gap where the zipper ends meet at the head and foot ends are covered by a flap that snaps around the ridgeline.

Side Wings

A nice thing about enclosed hammocks is that they offer the gear-loss prevention of a tent. Your quilt and the small essentials you bring into the hammock with you won’t fall out onto the ground when you get in and out of your hammock in the middle of the night as they can in an open
hammock.

Side wings near the head end prevent too much sway, make the interior more spacious, and provide storage space for small essentials.
Side wings near the head end prevent too much sway, make the interior more spacious, and provide storage space for small essentials.

The Mantis UL bugnet has wings that are guyed out on either side to open up the living area in the hammock and create a pair of gear shelves with pockets that can fit a headlamp, camera or phone. The shelves are a convenient place to stow a hat or an extra layer. The guyouts, which are made of elastic cord attached to static guyline on a LineLoc adjuster, help hold these gear pockets in place as you get in and out of the hammock and also prevent excessive sway in the night while still being forgiving of the dynamic movement inherent to a hammock system. They attach to small webbing loops on the bugnet with the same knotless hooks found on the ridgeline.

This makes it easy to switch the guyouts over to the Winter Barrier. The hooks kind of “click” tightly onto the loops but I could imagine them coming off while packing up, thus losing the guylines. Granted, it hasn’t happened to me yet, but I feel that tying the lines onto the loops would be more secure, and is a simple mod to do yourself. The loops at the other end of the guyouts slip over the same stakes you used for the nearest tarp corners.

Insulation

The Mantis requires both top and bottom insulation–best served by a top quilt and underquilt. You can’t use peapod-style insulation (like we reviewed here and here) when the bugnet or winter barrier are attached, but you can if you zip them off, leaving an open hammock for the peapod to wrap around. A sleeping pad can also be used underneath you, but there is no dedicated pad sleeve on the Mantis UL to keep it from sliding around.

The Firebelly snaps onto Kammok hammocks for use as an underquilt.

Like all of Kammok’s hammocks, the Mantis UL has grosgrain loops around its perimeter to which Kammok underquilts (like the Kammok Firebelly, reviewed here) can be snapped. These loops help keep the underquilt snug to the hammock bottom and prevent sagging and drafts. Kammok doesn’t currently make an underquilt for below-freezing temperatures, so I stack underquilts, using their Firebelly against the hammock body and rigging up another underquilt below it with a more traditional shock cord suspension.

Ease of Setup/ Breakdown

The Mantis UL is very quick and easy to set up, with a number of features that take the fiddling and guesswork out of setup. For the tarp, wrap the ridgelines around two trees, clip the knotless hooks and tension the LineLocs. Stake out the four corners, and tension those LineLocs. For the hammock, wrap the Python UL straps around the same trees as the tarp, and clip the carabiners into the daisy chain loops. Then slip the side wing guyout loops over the same stakes you used for the head-end of the tarp. That’s it.

The tarp attaches to trees with knotless aluminum hooks.
The tarp attaches to trees with knotless aluminum hooks.

To have such a quick setup, you have to stow your tarp guylines properly when packing up. They are very prone to tangling when stowed, as they are textured (due to the reflective tracer), have a pre-tied stake loop, and use LineLoc hardware.

I found even when I used a simple coil wrapped around the middle, I would inevitably find the coil had slipped and created knots when I unpacked, which quintupled my setup time. The best way to prevent this is to coil the lines in a figure-eight, looping them around your thumb and pinky, wrap the last foot or so around the middle, and tie it off with a slippery half-hitch. Especially when it’s raining in the morning, I like to pack up as quickly as possible, but spending the extra couple minutes here to coil the guylines properly will be worth it when you pull into camp in the evening, as your setup time will be drastically reduced.

At 56 inches wide, it’s easy to get a comfortable diagonal lay with no hyperextension of the knees.
At 56 inches wide, it’s easy to get a comfortable diagonal lay with no hyperextension of the knees.

Features in Use

The Mantis UL hammock body is 120 inches by 56 inches, which is plenty for me to get a flat diagonal lay. The backs of my knees are comfortably supported with no hyperextension. The integrated fixed-length ridgeline and the gear wings create a feeling of spaciousness inside the hammock. The fact that the gear wings are guyed out also provides stability to the hammock, limiting excessive sway when I turn from my back to my side in the night.

The tarp, as described above, is quick and easy to set up. There are Hypalon grommets at each guyout point to accept trekking pole tips to raise the sides of the tarp in “porch mode”–a tarp set up with one side in a horizontal canopy that maximizes rain coverage as well as visibility. I would love it if the tarp had at least ridgeline pockets to stow the cordage, as I think this would go a long way in preventing tangling, but proper coiling helps too.

The tarp has Hypalon grommets at all guyout points to accept trekking pole tips
The tarp has Hypalon grommets at all guyout points to accept trekking pole tips

The Python UL 10 straps are easy for a beginner to use with little chance of error. Clipping a carabiner into a daisy chain is about as simple as suspensions can get, and also feels very secure.

The DAC stakes are strong and grip well in a variety of ground conditions. They have a cord loop for easy pulling and a slightly rounded head which doesn’t dig into your palm when pushing them into the ground. They have survived being pounded into frozen ground with a rock without any distortion.

Packability

All of the Mantis UL’s components fit easily into its attached roll-top stow bag, which has a separate inner pocket for the tarp to keep it neatly apart from the hammock. As is featured on all Kammok tarps, the stuff sack incorporates an external pocket for the tarp stakes.

A stake pocket is integrated into the back side of the stuff sack. This pocket holds the 6 DAC stakes tightly when the stuff sack is full
A stake pocket is integrated into the back side of the stuff sack. This pocket holds the 6 DAC stakes tightly when the stuff sack is full

I’ve come to really like this feature and miss it when I’m using another shelter. It’s just so convenient having the stakes right there with your shelter for pitching but kept securely away from the shelter fabric to prevent damage to it. I like the DAC stakes that come with the kit so it works for me; if you were to switch out stakes you’ll have to bring a separate stake sack as the external pocket is custom-fitted to the included stakes.

The carabiners on the Mantis UL system include one that comes out the bottom of the stuff sack at one end of the hammock, and another that comes attached to the other end of the hammock. This means less small, loose parts to keep track of and potentially lose—the carabiners, stuff sack, and hammock are all connected into one unit; only the tarp, Python straps, and stakes are separate pieces.

The Mantis UL bugnet provides excellent ventilation in rainy or dry weather.
The Mantis UL bugnet provides excellent ventilation in rainy or dry weather.

Recommendation

The Kammok Mantis Ultralight All-in-One Hammock Tent offers a readily available (can be purchased at REI), one-and-done hammocking system that is easy for new hammockers to use while still offering features, materials, and light weight that can be appreciated by a more experienced hanger. On one trip this past fall, I lent the Mantis UL to my hiking buddy who had never hammock-camped before and its quick setup and comfort sold him on hammocking. The feature set shows a lot of attention to small details that make for intuitive and reliable use in the field.

Disclosure: Kammok provided SectionHiker with a Mantis UL for this review.

Editor's note: Help support this site by making your next gear purchase through one of the affiliate links above. Click a link, buy what you need, and the seller will contribute a portion of the purchase price to support SectionHiker's unsponsored and independent gear reviews, beginner FAQs, and free hiking guides.

About the author

Greg Pehrson is an ultralight backpacker who was bitten hard by the MYOG (make-your-own-gear) bug. He repairs, tinkers, and builds gear, often seeking to upcycle throwaway items or repurpose things from outside the backpacking world.

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24 comments

  1. Will a Wooki underquilt fit this?

    • Hi Grandpa,
      The Wooki is sized to fit WB hammocks which are the same length as the Mantis but 6 inches wider (62″ vs. 56″). I haven’t used a Wooki but I’d be worried about 6 extra inches of floppiness away from the body of the hammock. It’s hard to imagine how those extra six inches will be experienced in use–will they droop the underquilt away from you, or will the walls of the Wooki come up above walls of the Mantis when the Mantis is under your body weight? How floppy will that extra fabric be in the wind? You could use mini carabiners, velcro wrap, or even just tie pieces of grosgrain to connect the side loops on the Wooki with the side loops on the Mantis, but I’m not sure how well they’d line up, or you could sew hooks onto the Wooki to match up with the Mantis’s loops exactly. Sorry to not have a more definitive answer.

  2. Warbonnet addresses this on the product page for the Wooki.

    • Unless Warbonnet has tested the wookie with the hammocks of their chief competitors I’d take their wookie guidance with a grain of salt. Love Warbonnnet, but they can’t decided whether they want to sell “system” gear that works best with their own products or gear that’s compatible with gear from other vendors. This isn’t true for all of their products, but the wookie in particular strikes me as less general purpose than most hammock underquilts sold today. I’ve owned two wookies (sold one to Grandpa) and kept the other to use with a Warbonnet Blackbird. Would you use a wookie with a ENO single, for example?

      • Well, the single is a 9 ft hammock and the wookis are for 10 and 11 foot hammocks. So, no. But I get your point. Getting the wooki to work with other hammocks seems like it just reintroduces the fiddle factor they aimed to eliminate.

  3. Andrew Glenn - Team Kammok

    Thanks for the love from all of us at Team Kammok!

    • Thanks for your hands-off approach to letting us test your gear. We don’t like to be pressured by manufacturers. You might want to look at the Winter Barrier review posted tomorrow. We have some suggestions for improvement.

  4. I am wondering if you have any experience with the Hammock Gear Wanderlust complete system and how you think it compares to this Kammock UL System?

  5. I purchased the Mantis UL when it was in its Kickstarter stage and I love mine. You’re correct about the tarp’s cords: it’s an absolute must to take one’s time and stow them neatly. Even if it’s raining, take the time. I’d rather get rained on futzing with it while packing it up that be rained on while setting it up for the evening.

    It wasn’t until night six of a week-long hike that I realized that tying out the wings made it much easier for my to lie flat. I sleep on my side, and I tend to bend my knees; that always results in me having a bit of a twist in my legs. But with the wings tied out, it was much easier to get & stay diagonal.

    I use a Zenbivy. It’s probably better suited for ground sleepers, but I’ve come up with a plan (Gossamer Gear’s 1/8″ pad) that should keep the system in order. I can’t wait to get out onto the trail and test it!

    I’m looking for a actual underquilt to replace the down sleeping bag I’ve been using as at not-very-efficient underquilt. I’d prefer to buy one made in the US from a small company, but I want to make sure it fits as close to perfect as possible. I’ve spent two seasons trying to make the sleeping bag work & I’ve grown weary of futzing with it. So I’ll probably end up with a Firebelly in the end.

  6. I’m fully committed to the hammock cult, but would like something lighter than my Hennessy. I’m 6’4″; do you think this is long enough for me? Thank you.

  7. I have the Kammock Mantis in Aloe Green. I’m 6’4″, 200lbs and I sleep comfortably. I’m not sure how this compares to the UL version, but I’m very happy with it. I’m mainly a side sleeper and it works fine. The winter barrier is pointless for me. I used one down to 29°F and the condensation was terrible. I do recommend the gear loft though

    • I concur with the recommendation for the gear loft. I hang my glasses & head lamp from the ridgeline, but the gear loft is really roomy – I usually put a big, easy to identify by feel items in it, like a water bottle & my power cell (if it’s not too cold). It surprises me how much stuff will fit in the gear loft.

  8. How does the Kammock Mantis UL compare to the Warbonnet Blackbird? I had intended to buy a Blackbird this spring based on your reviews, but the price point on the Kammock is more appealing. I currently only would use <6 times per year.

  9. The Blackbird was the first backpacking hammock I tried that got me hooked (I borrowed one).

    Both the Blackbird and the Mantis are great options.

    The Blackbird gives you more options for customization (choose single or double layer based on your weight and if you want to use a pad, choose from several suspension options, add your own tarp) but doesn’t allow you to remove the bugnet. The Blackbird has a larger “gear shelf” inside and a dedicated foot box for extra foot room. Do you want a hammock that allows you to use a pad or do you have a good sense of the pros and cons of the custom options and know exactly what you want from a hammock suspension? Go with the Blackbird.

    The Mantis doesn’t have custom options–it’s one all-in-one hammock package–and you can remove the bugnet entirely. This is a nice option for saving weight if you don’t always need a bug net, or if you’ll run a winter cover or sock on it sometimes. You can choose the non-UL Mantis system if you need it to support more than 300 pounds.
    Do you want a plug-and-play hammock system that is lightweight, simple, integrated and secure? Do you want to be able to check out the hammock in a store before buying it? Go with the Mantis.

  10. “Curious,” I understood Philip’s post to be adding to my pro/con list above, i.e. [A pro of the Mantis is if you] “don’t like the Mantis after a few months [you can] return it.”

  11. The fire belly is so darn expensive. Has anyone found a reasonably priced alternative?

  12. Would this Kammock Mantis UL work with a Hammock Gear Incubator full-length underquilt?

    At $180 for a 20F version, it’s a much more appealing price point than the Kammock Firebelly. Part of the point of an integrated system like the Mantis is to help people get started in hammocking, and the premium price of the Firebelly seems to work against that.

    The Mantis UL, on the other hand is very reasonably priced. But I can’t believe many new hammockers are going to be comfortable paying more for the underquilt than for the rest of the system combined.

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