SlingFin Portal 3 Person Ultralight Tent
SlingFin Portal 3 Person Ultralight Tent
SlingFin Portal 3 Person Ultralight Tent
SlingFin Portal 3 Person Ultralight Tent
SlingFin Portal 3 Person Ultralight Tent
SlingFin Portal 3 Person Ultralight Tent
SlingFin Portal 3 Person Ultralight Tent
SlingFin Portal 3 Person Ultralight Tent
SlingFin Portal 3 Person Ultralight Tent

SlingFin Portal 3 Person Ultralight Tent

Regular price$1,049.00
Tax included. Shipping calculated at checkout.


The 3-person version of SlinFin's bestselling Portal tent, the Portal 3 keeps the best parts of the 2-person and bumps the size up to accommodate a third adventure partner. Like its siblings, the Portal 3 maximizes its strength-to-weight ratio by incorporating several features developed for our Expedition Series tents, like our OutRigger attachment, pre-installed internal guylines, and numerous external guy points.

The Portal 3 is more than a scaled-up version of the Portal 2. With beefier poles to compensate for the tent's larger wind profile and a split ceiling pocket at the head for better accessibility by multiple people, we crafted the Portal 3 from the ground up with just as much attention to detail as the original Portal. We tested the Portal 3 on everything from multiday whitewater trips in the American Southwest to the Icelandic highlands to ensure that the Portal 3 will be a steadfast companion no matter where the trail (or river, or road) takes you.

Our 10D Nylon 66 Ripstop silicone-coated flysheet fabric is basically magic, with better UV resistance than fabrics three times its weight (read more about our UV testing here), super low water absorption (aka quick dry times), and incredible mold/mildew resistance. The silicone coating will not break down in your closet and produce that "old tent smell" that haunts well-loved gear. The 20D PE-coated floor fabric strikes a good balance between light weight and durability and doesn't absorb water, unlike PU-coated floor fabrics. It also has far more hydrolytic stability than PU coatings and won't become flaky and smelly with time. Pre-installed spare sliders on all the zippers double your zippers' lifespan and eliminate the need for half-baked field repairs when you're 90% of the way to the terminus of whatever long trail you're on.

To prolong the life of your Portal's floor, pick up a Portal 3 footprint. For ultralight weather protection in non-buggy conditions, check out the Portal 3 Tub Floor. Additional stakes and guylines can be purchased here.


  • Two doors and two vestibules
  • 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 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 (three ceiling, two head, two side, one foot).
  • 10 external guy points and 2 perimeter pull-outs provide ample reinforcement.
  • External guy points correspond to flysheet-to-pole attachments to increase stability.
  • Matching reflective tabs on fly and tent body simplify setup.
  • Color-coordinated stake loops for easy flysheet orientation.
  • Pre-installed spare zipper sliders on every zipper double your zippers' lifespan.
  • 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.
  • Includes 10 DAC J-Stakes and 10 additional external guylines (not including 2 pre-installed internal guylines)
  • Please note: The tents supplied to Backpacking Light are not supplied seam sealed by Slingfin. Its a simple process and this is a video instruction link we recommend using the Gear Aid Silicone Tent Sealant.


Minimum Weight 3lbs 12oz (1.7kg)
Packaged Weight 4lbs 3oz (1.9kg)
Capacity 3
Floor Area 41.5 sq ft (3.86 sq m)
Interior Height
44" (112cm)
Packed Size
6" x 17" (15cm x 43cm)
Pole Package Length
15.5" (39cm)
Floor Dimensions 92" x 68" (head) / 62" (foot) (234cm x 173cm/157cm)
Vestibule Area 10.3 sq ft (0.96 sq m)
Vestibule Depth 33" (84cm)
Number of poles 3
Number of doors 2
Guy out loops 10
Pockets 8
Perimeter pull out loops 2
Included Guylines 10 (+2 pre-installed internal guylines)
Included Stakes 10 



Tent Body Fabric
15D Nylon no-see-um mesh
Floor Fabric 20D Nylon Ripstop PE 1800mm
Fly Fabric 10D Nylon 66 Ripstop Sil/Sil 1200mm
Poles 2 DAC Featherlite NFL 9.3mm, 1 PL 10.65mm


The standard local delivery time from our store in Melbourne for orders placed before noon is 2–7 business days via Australia Post standard delivery. Express Post is also available. Please see our Shipping page for more details. International Orders are subject to flight availability.

If you'd like to know availability and delivery times for a specific item please contact us and we will get back to you asap.

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About slingfin

SlingFin was founded in 2010 with one simple goal. Build the strongest, most innovative, no-expense-spared outdoor equipment in the world.

Slingfin represents the sum total of founder Martin Zemitis’ three decades of experience in the outdoor industry. After designing for The North Face and Sierra Designs for around a decade he co-founded Mountain Hardwear, where he designed equipment until 2009. Eventually he began to desire more freedom to design without the constraints of price targets and decided it was time to take things in a new direction. Soon thereafter, SlingFin was born.

Slingfin started making high alpine-focused dream tents that people on Everest would use as windbreaks for other tents. After a while, they realized the demand for shelters that can stand up to the elements extends well beyond the high alpine. Since then they’ve kept the strength-to-weight ratio of their tents at the forefront of their product development process. Choosing materials that improve the long-term durability of the products even if they’re more expensive, because they believe a good tent should be a long-term investment. Through thoughtful design, premium materials, and a deep understanding of tensile structures, Slingfin have created a full lineup of tents that can withstand much harsher conditions than other tents in their weight class.

SlingFin is an employee-owned, self-funded company. This means no suits, no “bean-counters”, and no pressure to maximize profit at the expense of quality. They’re small, lean, and scrappy, and they like it that way. Making the gear they want to use, not the gear a VC firm thinks will get them the best ROI. Their designs are inspired by the desire for stronger, lighter gear. Drawing on their deep industry heritage and passion for the outdoors to ensure that the materials, attention to detail, and build quality of their products are impeccable.

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