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Sea to Summit Pro Double Review

This lightweight all-around model makes no sacrifices when it comes to comfort and versatility
Sea to Summit Pro Double
Photo: REI Co-op
Top Pick Award
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Price:  $90 List | $84.85 at Amazon
Pros:  Lightweight, spacious, easy set up, versatile for day use or backcountry shelter
Cons:  All components sold separately, can only use branded suspension system, pricey for the full system
Manufacturer:   Sea to Summit
By Elizabeth Paashaus ⋅ Review Editor  ⋅  May 7, 2019
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71
OVERALL
SCORE


RANKED
#5 of 16
  • Comfort - 40% 6
  • Weight - 20% 8
  • Durability and Protection - 20% 8
  • Ease of Set Up - 10% 7
  • Versatility - 10% 8

Our Verdict

The Pro Double is our Top Pick for Ultralight Versatility because it keeps the weight low without losing too much comfort. It isn't quite as comfortable as the asymmetric models we tested but is a more luxurious hang than the ultralight models. If your plans include both sheltering and chilling at the crag, you can leave the components you don't need behind and have a compact end-gathered hammock that is as comfortable and easy to hang as the top day use models in our tests. Read on to see what we love as well as what we aren't thrilled about with the Pro Double.

Compare to Similar Products

 
Awards Top Pick Award Best Buy Award  Best Buy Award  
Price $84.85 at Amazon$159.95 at REICheck Price at Backcountry
Compare at 3 sellers
$21.99 at Amazon$29.95 at Amazon
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Pros Lightweight, spacious, easy set up, versatile for day use or backcountry shelterComfortable asymmetric design, budget friendly, package includes full shelter systemSpacious, comfortable, durable material, many colors and optionsComfortable, large, easy to use, versatile, surprisingly low costAffordable, lightweight, comfortable
Cons All components sold separately, can only use branded suspension system, pricey for the full systemMore complicated set up, small rain fly, bug net is not removableSuspension not included, fairly priceyNot the lightest, sticky carabinerLimited durability and protection, only moderately sized
Bottom Line This lightweight all-around model makes no sacrifices when it comes to comfort and versatilityThe trimmed-down design of the Expedition offers a comfortable asymmetric shape and keeps both the weight and the price lowThis time-tested hammock continues to be a comfortable, lightweight, and durable option for lounging and even backpackingA great way to save money but still find all the comfort, simplicity, and webbing suspension straps that you expect from top hammock brandsA very affordable and easy-to-use hammock that provides a great entry point to try out hammocking without breaking the bank or the scales
Rating Categories Sea to Summit Pro D... Hennessy Expedition... ENO DoubleNest Kootek Portable Grand Trunk Ultrali...
Comfort (40%)
6.0
7.0
6.0
6.0
4.0
Weight (20%)
8.0
7.0
5.0
5.0
8.0
Durability And Protection (20%)
8.0
8.0
5.0
5.0
4.0
Ease Of Set Up (10%)
7.0
4.0
9.0
9.0
9.0
Versatility (10%)
8.0
4.0
6.0
5.0
5.0
Specs Sea to Summit Pro D... Hennessy Expedition... ENO DoubleNest Kootek Portable Grand Trunk Ultrali...
Measured Weight - Package (ounces) 16 oz 42 oz 19.1 oz 23 oz 14.6 oz
Measured Weight - Hammock Only (ounces) 16 oz 30 oz (hammock, bug net, suspension) 17.7 oz 23 oz 10.3 oz
Measured Weight - Hammock and Suspension (ounces) 19 oz 30 oz (hammock, bug net, suspension) 31 oz with atlas straps 37 oz N/A
Measured Weight - Shelter System (no stakes) 42 oz (hammock suspension, bug net, tarp) 42 oz (hammock, bug net, tarp, suspension) N/A N/A N/A
Capacity (weight) 400 lbs 250 lbs 400 lbs 500 lbs 300lbs
Hanging Straps Included? No Yes No Yes, 10' straps No
Hammock Size 10' x 6'2" 10' x 4.92' 8'9" x 6'3" 9'10" x 6'6" 8'9" x 4'8"
Size Compact 4" x 6" 9" x 7" x 4" 8.5" x 5" x 4.25" 9.8" x 7.4" 8" x 4" x 4"
Connectors Buckles Polyester rope Wiregate carabiners Steel carabiners Nautical grade carabiners
Material 70D nylon ripstop 70D Oxford Nylon 70D High Tenacity Nylon Taffeta 210D nylon King Rhombic RipStop Polyester
Construction Ripstop nylon, double interlocking stitching Single panel double-stitched seam connection to zipper and 30D polyester No-See-Um netting. 3mm integrated ridgeline. 5mm cord connected to hammock anchor point to tie around tree strap. Dual stretch cord attachments to pull hammock body away at sides. Three triple-stitched body panels, triple-stitched anchor loops with 7mm cord to connector. Triple interlocking stitching Mildew resistant, tear resistant
Sizes / Colors 2 sizes, 4 colors Multiple other sizes/configurations available under other Hennessy product names 3 sizes, 59 colors/patterns 1 size, 5 colors 1 size, 3 color options
Capacity (height) Not stated 6' Not stated Not stated Not stated
Accessories (compatible, not included) Suspension straps, Rain fly, bug net, gear sling, wider tree protection straps, Tree straps, larger rain flys, insulation, "snakeskin" stuff sacks Aluminum wiregate carabiners None Trunk strap, aluminum carabiners, stand
Accessories (included with hammock) Continuous loops Tree straps, 70D polyurethane coated polyester ripstop rainfly, integrated bug net Aluminum, wiregate carabiners Tree straps, steel carabiners Stuff sack, carabiners
Extra Accessories Tested Rain fly, ultralight suspension straps, bug net None Atlas straps None None

Our Analysis and Test Results

The Sea to Summit Pro Double hammock allows you to pick and choose the components you need for any outdoor hammock adventure. This long and wide 'mock gives you plenty of space to find a comfortable diagonal position for sleeping or sitting with a friend at the park.

Add Sea to Summit's lightweight tarp and zippered entry bug net with a spreader bar, and you have an a la carte system every bit as light as all but the lightest hammock systems on the market. With the combination of comfort, low weight, and versatility, it's easy to see why we chose the Sea to Summit hammock system as our Top Pick for Ultralight Versatility.

Performance Comparison


The Pro Double is spacious and comfortable for day trips and is...
The Pro Double is spacious and comfortable for day trips and is light enough for overnight backcountry excursions. Just add or subtract components to get the right fit for your trip.
Photo: Elizabeth Paashaus

Comfort


The larger size of the Pro Double makes it almost as comfortable for lounging as some of the other voluminous end gathered hammocks. Sea to Summit's Pro Double exceeds many in length and comes up 9 inches short of the longest hammocks we tested. In width, the Pro Double is 7 inches narrower than the widest we tested.

The Pro Double is very comfortable as a shelter system. Our testers like its width and were able to find a comfortable, flat position much better than smaller shelter hammocks. Still, the size and shape don't provide as much of a spacious feel and flat position as the asymmetric hammocks.


When using an end-gathered hammock, comfort is dictated by the size of the fabric and how you hang it. Because the Pro Double is larger than other ultralight models we tested, 10 feet long and just over 6 feet wide, it makes it much easier to find the diagonal sweet spot. Even our 6-foot tall testers had plenty of room to stretch out. Another benefit of the large size is that we can get comfy and when sitting sideways whether we hung the hammock loosely or taut. The hammock also has plenty of room for a buddy.

In traditional hammocks without spreader bars, you'll find the most...
In traditional hammocks without spreader bars, you'll find the most comfort when you lie on "the diagonal".
Photo: Adam Paashaus

Weight


The hammock itself weighs just a pound. It's lighter than all but the ultralight models making it viable for taking on multi-night backpacking trips where weight is important. While this weight itself isn't impressive compared to ultralight hammocks, once we added in the tarp, straps, and bug net, the Sea to Summit Pro Double System comes to the same weight as systems with lighter hammocks at 42 ounces.


Sea to Summit uses a lighter weight material in their tarp than ENO does in their very similar Sublink system, saving 5 ounces. They save another almost 2 ounces on the bug net and 2 ounces on the suspension straps. Add in ENO's fleece-lined stuff sack pillow, and you make up the 10 ounces difference in hammock weights. If you prioritize comfort, the Pro Double is going to make you happier.

Pictured here is your entire shelter! The hammock itself (top) is...
Pictured here is your entire shelter! The hammock itself (top) is about the size of a 32-ounce bottle. Add in the tarp (left), bug net (middle), and suspension straps (bottom right) and you have everything you need.
Photo: Elizabeth Paashaus

Durability and Protection


In many ways, the Sea to Summit Pro is identical to the other basic end gathered hammocks we tested, but the thing that sets it aside is the material. The hammock is made with lighter-weight nylon than the day-use models. Sea to Summit uses a ripstop material to increase durability while decreasing weight. This also makes the Pro Double a very compact hammock. Only ultralight models are smaller.


When using the Pro Double as a backpacking shelter with a rain fly, Sea to Summit's Hammock Tarp really shines. It is lightweight and easy to set up and adjust with built-in cord tensioners on each corner. Sea to Summit's tarp uses a 5-point shape that gives you more protection from the wind and blowing rain on one side of the hammock and more visibility on the other. You can set the hammock up so that the large side faces into the wind and enjoy the weight savings that come from not having an entirely rectangular tarp. The tarp is an excellent compromise between protection and weight savings for those who like to camp even if there is rain in the forecast.

You can pitch one side of your tarp up with a trekking pole for...
You can pitch one side of your tarp up with a trekking pole for better views while leaving the wider side pitched low to block the wind and rain.
Photo: Elizabeth Paashaus

We like that the Sea to Summit Hammock Bug Net has a spreader bar to keep the net off our faces. The world's tiniest little tent pole is inside the stuff sack, and you assemble and slide it into a pole sleeve on the net. The pole doesn't keep the net very high off of your face (a few inches lower than the ends of your hammock). If you tend to be claustrophobic or want to sit up a little bit better, a bug net with a ridgeline might be a better fit. Even though the net isn't very high off your face, the material is soft and stretchy, so we found it pretty easy to sit up anyways.

We like the large door of this bug net. It is much easier to get in and out of than the sleeve-style netting, which you have to slide down over you like a sleeping bag.

The Sea to Summit Bug Net is very soft, but the less dense weave leaves us concerns about smaller insects such as no-see-ums. We also suspect the durability of this material which showed tears near the snap that holds the bar in after just one use. This area sustains the most force when setting the net up and is easily stressed. The other durability issue we found with this bug net is that it drags the ground unless your hammock is set pretty high. Therefore, when you get out of your hammock, you will likely step on the net if you're not extra careful.

Stepping on a delicate bug net like this one is bound to quickly...
Stepping on a delicate bug net like this one is bound to quickly tear holes in it, so you need to be extra careful getting in and out.
Photo: Elizabeth Paashaus

Ease of Set Up


Setting up the Pro Double is very quick and intuitive. We tested it with Sea to Summit's Ultralight Suspension Straps. These have a metal hoop on one end, allowing you to quickly pass the end of the webbing through. It's not hard to pass a webbing line through a webbing loop, but the metal buckle means that you encounter virtually no resistance, so the process is smooth; no fiddling is required.


The tree straps should have been wider. At ¾-inch, they don't provide much protection for the tree's bark, but they are better than just a piece of cord. Sea to Summit uses an innovative metal buckle to hook the hammock suspension to the tree strap. This makes hanging your hammock a cinch and reduces wear on the webbing and cord. The other complaint about the suspension system is that the webbing doesn't tighten or release very easily. We had to manually thread the webbing through the adjustment buckle rather than lifting the end and sliding it smoothly. It's important to note that Sea to Summit hammocks can ONLY be set up with Sea to Summit straps and vice versa. Don't buy one without the other.

Click to enlarge
Click to enlarge

If you use the bug net accessory, you'll need to slide it on over one end of the hammock. Our testers found that if you try to do this after putting your sleeping bag and pad inside the hammock, it is a tight fit and a little harder to hold the hammock off the ground as you unhook its attachment to the tree. The best idea is to put the bug net on when you set the hammock up and leave it bunched up at one end until you need it. We also found it difficult to attach an underquilt with the bug net because the net is cinched up around the hammock ends, right where you need to attach the underquilt.

The durable trekking pole hole, integrated tensioners, and included...
The durable trekking pole hole, integrated tensioners, and included guy lines are nice touches that make this system quick and easy to pitch.
Photo: Elizabeth Paashaus

Versatility


The Sea to Summit hammock shelter system is versatile enough to award it our Top Pick for Versatility. Its combination of lightweight materials and the ability to pick and choose which components to take on any given trip allow you to buy one hammock for all uses. Without an integrated bug net or tarp, you can take the parts you need in your day pack and head to the park or pack everything for a week on the AT and still have your shelter only weigh in at 42 ounces.


Because this hammock is almost as large as the comfortable day use end-gathered hammocks, we often chose to bring it along because of its lighter weight. The 400-pound weight capacity also lets us rest easy, knowing that it won't limit most people from hanging out and watching the sunset with a friend.

Here we used all components together for maximum protection. During...
Here we used all components together for maximum protection. During many times of the year, the bug net will be unnecessary saving you a full 13 ounces in your shelter system!
Photo: Elizabeth Paashaus

Value


For the lightweight versatility and comfort you get with this hammock, the higher price tag is worth it. But, if you're considering the whole system, it's one of the most expensive models we tested when including all of the components. And you can get a more comfortable hammock with the same protection for the same or less weight. So why buy the Pro Double? The value of this hammock comes in its quality components and ability to hold its own in weight and comfort while giving you the option to pick and choose what pieces you need. For those who want that flexibility, the Pro Double holds tremendous value because we couldn't find another system that rated so high in all metrics, including versatility.

Conclusion


They say that you can get one piece of gear that can do it all, but it won't be able to do any one thing all that well. We think the Pro Double comes pretty close to doing it all and doing it well. It balances low weight, quality components that protect you from the elements, and a spacious hammock. It also leaves your options open about which pieces you want to carry with you on each adventure. If versatility is number one, the Pro Double with a tarp, bug net, and straps may be the system for you.

The Pro Double makes an excellent spot to get out of the sand, lie...
The Pro Double makes an excellent spot to get out of the sand, lie back, and enjoy springtime in the canyon.
Photo: Elizabeth Paashaus

Other Versions and Accessories


Sea to Summit offers a Pro Single that we haven't tested and an Ultralight hammock if you like this system but want to save a little or a lot of weight. Sea to Summit also sells 1.5-inch wide tree straps that would probably work better.

Elizabeth Paashaus