The SlingFin Portal 1 is a solo backpacking tent designed for serious adventurers who demand durability, weather protection, and minimal weight. Building on the reputation of the two-person Portal, the Portal 1 offers the same robust engineering in a more compact footprint. It’s aimed at hikers, bikepackers, and mountaineers who need a shelter that can handle tough conditions without weighing them down. This review explores the tent’s performance, design, setup, and long-term value for a global audience seeking reliable solo shelter.
Design and Build Quality
The Portal 1 is built with SlingFin’s signature attention to detail. The tent uses 10D nylon ripstop fabric for the fly and canopy, treated with silicone and polyurethane for waterproofing. The floor is made from 20D ripstop nylon with a 1,200mm waterhead rating, which balances weight and durability. All seams are factory-taped, and the stitching is clean and reinforced in high-stress areas.
The tent’s standout feature is its structural integrity. SlingFin incorporates their proprietary WebTruss system, which allows the poles to connect externally for added strength. This design improves wind resistance and makes the tent easier to pitch in adverse conditions. The DAC Featherlite NSL poles are lightweight but strong, and the pole geometry creates steep walls for better interior space.
The Portal 1 includes a single side-entry door and vestibule, which is generous for a solo tent. The vestibule offers enough space for a pack and boots, and the door design allows easy access without disturbing gear stored outside.
Interior Space and Livability
For a solo tent, the Portal 1 feels surprisingly roomy. The floor dimensions are 213cm long by 76cm wide, which accommodates most sleeping pads with room to spare. The peak height of 99cm allows for comfortable sitting and gear organisation. The vertical sidewalls and rectangular floor shape maximise usable space, making it feel less cramped than tapered designs.
There are multiple interior pockets for small items, and the tent includes loops for hanging a light or drying gear. Ventilation is excellent, with dual vents on the fly and a breathable canopy that reduces condensation. The tent also includes SlingFin’s “FlyBar” tensioning system, which helps maintain taut pitch and improves airflow.
Setup and Packability
Setting up the Portal 1 is straightforward. The WebTruss system allows the poles to be inserted into sleeves that hold them in place while you attach the fly. This makes pitching easier in wind or rain, as the tent maintains structure even before staking. Colour-coded clips and pole ends simplify the process, and the tent can be pitched in under five minutes with practice.
The packed size is compact, measuring approximately 13cm x 48cm. Total weight is around 1.1kg (2.4lbs), which includes the tent, poles, stakes, and stuff sack. This places it in the ultralight category, though not the absolute lightest. The trade-off is strength and durability, which many users will find worthwhile.
Weather Resistance
The Portal 1 is built to handle serious weather. The fly provides full coverage and includes multiple guy-out points for added stability. The WebTruss and FlyBar systems work together to distribute tension evenly, reducing flapping and improving wind resistance. In testing, the tent holds up well in gusts over 40mph when properly guyed out.
Rain protection is excellent. The fly sheds water efficiently, and the bathtub floor prevents seepage. The vestibule protects gear from splashback, and the canopy’s breathability helps reduce internal moisture. Snow loading is manageable for light winter use, though this is not a four-season tent. For alpine summer conditions or shoulder-season use, the Portal 1 is more than capable.
Durability and Materials
SlingFin uses premium materials throughout the Portal 1. The fabrics are lightweight but tough, and the DAC poles are industry-leading in strength-to-weight ratio. Zippers are YKK and run smoothly, with storm flaps to protect them from rain and grit. The stake loops and guy-out points are reinforced, and the tent includes reflective accents for visibility at night.
After extended use, the tent shows minimal wear. The fly retains waterproofing, and the floor resists abrasion from rocky campsites. The pole sleeves and clips remain secure, and the tent maintains its shape even after repeated pitching. For users who camp frequently or in harsh environments, the Portal 1 offers long-term reliability.
Use Cases and Versatility
The Portal 1 is ideal for solo backpackers who want a tent that balances weight, space, and protection. It’s well-suited for thru-hikes, alpine treks, and bikepacking trips where pack space is limited but shelter performance matters. The vestibule and interior space make it comfortable for extended use, and the tent’s strength allows it to handle exposed campsites.
For international travellers, the compact size and lightweight build make it easy to pack and carry. The tent performs well in a range of climates, from humid forests to dry highlands. It’s not designed for deep winter or heavy snow, but for three-season use, it excels.
Comparison with Other Solo Tents
Compared to other solo tents in the same weight class, the Portal 1 stands out for its structural integrity and livability. Models like the Big Agnes Copper Spur HV UL1 or the MSR Hubba NX Solo offer similar weight but less wind resistance. The Tarptent ProTrail is lighter but lacks the freestanding structure and weather protection.
The Portal 1’s price point is higher than some competitors, but the build quality and performance justify the cost. For users who prioritise reliability and comfort over minimal weight, it’s a strong contender.
Pros and Cons
Pros:
- Excellent wind and rain resistance
- Roomy interior with vertical walls
- Lightweight and compact for solo use
- Durable materials and premium components
- Easy setup with WebTruss system
- Good ventilation and condensation control
Cons:
- Higher price than entry-level solo tents
- Not suitable for heavy snow or deep winter
- Slightly heavier than minimalist shelters
- Single door limits access options
Final Thoughts
The SlingFin Portal 1 is a well-engineered solo tent that delivers on its promises. It offers a rare combination of strength, comfort, and portability, making it ideal for serious backpackers and adventurers. While it’s not the lightest option available, its durability and weather protection make it a smart choice for those who camp in exposed or variable conditions.
The Portal 1 provides a reliable shelter that performs across seasons and terrain. It’s built to last, easy to use, and comfortable enough for extended trips. If you’re looking for a solo tent that won’t let you down when the weather turns, the SlingFin Portal 1 deserves a place on your shortlist.
