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Outside Magazine named the Portal one of the 3 Best Tents of 2019: "the only tent we’d want on a stormy trek." The Portal was also featured as "strongest tent" in Backpacker Magazine's Summer 2019 Gear Guide. 

The Portal is our lightest freestanding tent at 2lbs 13oz. It's our statement piece saying you don't need to sacrifice strength, features, or durability to make an ultralight freestanding tent. 

If there's a stronger sub three-pound tent out there, we have yet to find it. By incorporating several technologies from our Expedition Series tents, we were able to give the Portal a degree of stability and weather resistance previously reserved for dedicated "four-season", or more accurately, "one season" tents. 

We designed the Portal with an eye for long-term durability. This means using premium fabrics with good UV and mildew resistance, eliminating PU coatings that break down over time, and adding extra zipper sliders to double the zippers' lifespan. 

The double needle lap-felled seams on the fly do not require seam sealing or tape, and the floor is fully taped.

To prolong the life of your Portal's floor, pick up a Portal footprint. For ultralight weather protection in non-buggy conditions, check out the Portal Tub Floor.


  • Two doors and two vestibules increase livability for two.
  • Pre-installed internal guylines give the Portal great lateral stability for almost no weight increase. Click here for step-by-step instructions to install a second set of internal guylines. Click here to learn how internal guylines work.
  • Our new KickStand vents make ventilation a breeze. Opposing struts on the vestibule doors provide unrestricted cross-tent airflow for excellent condensation management without sacrificing weather protection.
  • High-volume pole structure with a swivel provides well-distributed headroom without the weakness of hubs.
  • Pole swivel connects long poles for easy setup
  • All the pockets you could ever want (two ceiling, two head, two side, one foot).
  • Offset vestibule design eases entry and exit.
  • 10 external guy points provide ample reinforcement. External guy points are matched to toggles to attach the fly directly to the poles, increasing stability.
  • Matching reflective tabs on fly and tent body simplify setup.
  • Can be pitched with footprint (not included) and fly for a minimalist weather shelter.
  • 2-Side silicone impregnated flysheet and PE floor fabric are mildew-resistant and have excellent hydrolytic stability, and will last significantly longer than traditional PU-coated fabrics.
  • No additional seam sealing necessary.
  • Includes 10 DAC J-Stakes

Please note we cannot ship Portal Tents to addresses in CA, LA, and NJ. Please contact us if you have questions about CPAI-84 shipping restrictions.


Trail Weight 2lbs 13oz
Packaged Weight 3lbs 4oz
Capacity 2
Floor Area 27.45 sq ft 
Interior Height
Packed Size
14" x 5"
Floor Dimensions 85" x 51" (head) x 42" (foot)
Vestibule Area 2 x 8.4 sq ft
Number of poles 3
Number of doors 2



Tent Body Fabric
15D Nylon no-see-um mesh
Floor Fabric 20D Nylon Ripstop PE 1800mm
Fly Fabric 10D Nylon 66 Ripstop Sil/Sil
Poles 2 DAC Featherlite NFL 8.7mm, 1 NFL 9.3mm

Customer Reviews

Based on 7 reviews
Bomb Shelter

Pre-ordered the Portal along with the footprint. I’ve been in the back country on several trips and this tent performed extremely well. Very light weight 2P tent. Easy to setup with the pole swivel. Love all the pockets for storage of gear, and the head room. I camped on a bald one night with the fly rolled halfway up for star gazing. By morning the wind had picked up blowing in on one side, so I used a trekking pole on that side with the outrigger attachment. I didn’t use external guy points(should have), and the center pole didn’t move. One night it rained so hard for 30 minutes I thought I was going to float away, but when it stopped the bathtub was bone dry, even with the kickstand vents open. Condensation was never an issue. I was able to setup in the steady rain by setting up the rain fly with the footprint, then getting inside, wiping off the footprint, then clipping the tent body to the poles one side at the time. This kept the bathtub dry while setting up. I think the design, the attention to detail during the manufacturing, and the materials used are excellent. The customer service is top notch. I highly recommend any product SlingFin has to offer.

slingfin portal tent

i take this tent for my bikepacking and its awesome, very lightweight, fast assemble or deseemble and very comfortable.
thanks for this company from my experience this company have excellent customer service!
Without a doubt very recommend buy any product from this company!

SlingFin Portal - 13,000 ft Longs Peak Boulderfield, Rocky Mt. National Park, September 2019

Just took this tent out on a weeklong backpack in Rocky Mt. National Park:

- Packs down small and very light
- Rain fly is coated lightweight fabric with excellent water shedding quality - through 2 nights of thundershowers and hail at 13,000 ft
- Inside is cozy but the two side vestibules created by the rainfly add quite a bit of protected space for boots, packs....
- Lots of internal pockets, internal guy line option, all the zippers are sewn with reinforced bindings
- Although the bulk of the tent appears to be flimsy NoSeeUm mesh, the rainfly kept the tent surprisingly warm
- Great ventilation

- Would be easier to set up the tent without having to line up the striped tabs on the tent and rainfly -- difficult to do when trying to set up the tent in the wind and rain
- Should have used the same plastic hooks used to attach the tent to the poles to also attach the rainfly to the poles (instead of the more cumbersome grommets and plastic circles which require two hands to close -- also difficult to do when trying to set up the tent in the wind and rain)
- The orange fabric is very easy to cut/pierce. Our tent was strapped onto a backpack and after 1 week already has several holes
- Nice aluminum stakes were included but need to add 2 more for the number of corners and external guy lines on the tent
- Straps on the corners of the waterproof Footprint (purchased separately) are too long and non-adjustable. The ends of the tent poles insert into grommets in the straps, but the straps are too long, so if you try and move the tent the footprint falls off. The straps should be adjustable, or need to be shorter so the Footprint is tight when the tent is staked out.
- Unclear how the tent will hold up in heavy wind. There is already some stretching of the flimsy NoSeeUm fabric mesh which makes up most of the tent body. Most of the strength of the tent seems to be the poles and rainfly fabric.

Glad to know your Portal has been holding up in storms! I thought I'd respond to explain the reasoning behind some of our design decisions: The reflective tabs on the flysheet and tent body are important to orient the fly correctly. The Portal is tapered to maximize torso and elbow room when using it with two people. Neither the fly nor the tent is symmetrical about their minor axis, so if we didn't have starter tabs you'd only have a 50% chance of getting the fly in the correct orientation, which I expect would be much more frustrating than finding the starter tab! The tabs don't need to be lined up exactly, they just serve to indicate the proper orientation of the fly. If you have suggestions to improve our flysheet orientation indicators, we're all ears! As for the flysheet attachments, our toggle and o-ring system improves the tent's weatherproofness. To attach the fly to the same clips as the poles, we would need a box-stitched fabric loop sewn in two places. Every bit of added stitching increases the likelihood that water will wick through the thread. The toggles and o-rings can be sewn in-line with the seam and only require one attachment point. We didn't want to make our customers seam seal every pole attachment point, and we didn't want to make it so people have to detach every pole clip to attach the fly to the poles. The orange fabric is indeed lightweight, and it's really not meant to handle the punctures and abrasion that happen on the outside of a backpack. Backpacks are made of such heavy abrasion-resistant fabric because they get knocked around a lot. If we made the stuff sack out of a fabric that was abrasion-resistant enough to handle being strapped to the outside of a pack long-term, it would be too heavy for most people looking for a tent in this category. I'd be happy to work with you to find some suitably-sized heavier stuff sacks if you primarily travel with your tent on the outside of your backpack. Good to know about the stakes! We'll definitely include a few more stakes and guylines when we revise the tent down the road! Also good to know about the footprint. I'll review the pattern and see if we can get it to stay attached a bit better. In the meantime, if you'd like to send us yours I can modify it to shorten the corner tabs. Send me an email at tim@slingfin.com if you're interested. And yes, the mesh isn't the burliest in the world, but it comes down to making the right trade-offs to save weight. This is the same 15D nylon no-see-um mesh that's used pretty much industry-wide on tents in this weight class (A bunch of us use the same factory and have access to many of the same fabrics). And you're right that the tent's strength comes largely from the flysheet and poles. Our pole architecture and guyline system are designed to take the stress off the canopy fabric and transfer it to the much stronger poles and flysheet fabric. But rest assured, if you do get any tears in your mesh we'll be happy to repair them for you! Thanks for the feedback! Tim + The SlingFin Crew
Great Roomy Lightweight 2P Tent

So far my wife and I have been really happy with the tent.  I'm a big fan of solidly-built gear, so SlingFin's rep as a builder of sturdy tents made the Portal appealing.  My wife and I had been hauling a 3P tent for just the two of us for years, and we got really tired of lugging it, but we were worried about being cramped in a 2P tent.  But while Portal floorspace is much smaller than our old 3P, we found the tent to be surprisingly roomy for the two of us with plenty of headroom.  We also love all the pockets. 

The tent feels very well built and the details are very well thought-out. That said, to achieve the light weight, the materials are very thin and more delicate than our old (heavy) 3P. Definitely use it with a footprint. We did have an issue with small holes appearing in the mesh, but we reached out to SlingFin for support and they are repairing it at no charge. As it happens, for the two trips we've used it on so far this year the weather has been perfect, so we haven't been able to test out the sturdiness in some really nasty weather, but it's only a matter of time.

All in all, we've been very pleased with both the tent and the company. Strongly recommended.

Excellent lightweight tent

I had a chance to use this tent on several camping trips and one mountaineering trip in North Cascades. The product never let me down. During the mountaineering trip we had a few days of foul weather and the interior remained dry throughout. I added footprint to protect the tent floor fabric as it is fairly thin. Highly recommended.