Fjallraven Abisko Trail T-Shirt

Purchased September 2017, reviewed August 2018

The Abisko Trail T-Shirt is a “lightweight trekking” lyocell-blend base layer from Swedish company Fjällräven. At $60 retail this is about as expensive as a short-sleeved base layer top gets, but last year I spotted it online at a deep discount. Fjällräven claims that the Abisko “wicks away moisture” and has “temperature regulating properties,” and its product web page shows Abisko-clad hikers and wilderness campsites surrounded by verdant Swedish tundra. So I went ahead and clicked the “Add to Cart” button, figuring this $60 Swedish t-shirt would breeze through the “Alaska Test.”

Fjallraven Abisko Trail T-Shirt review photo

Wearing the Abisko on a traverse of Penguin Ridge, in Alaska’s Chugach State Park. Photo: Brett Frazer.

Fit and Feel

The Abisko Trail T-Shirt has a tall, trim, athletic cut and is slightly longer in the back. The shoulder seams are on the chest and upper back rather than the top of the shoulder, which makes the shirt more comfortable with a backpack.

Photographing dahl sheep on Rainbow Peak in the Fjallraven Abisko Trail T-Shirt

Photographing dahl sheep on Rainbow Peak. Photo: Tony Lewkowski.

Out of the box, the Abisko has a light, smooth, soft feel. The fabric pilled quite a bit after a single wash, but it remains very soft and comfortable.

In Use

From spring to late summer 2018 the Abisko was my go-to for sunny-weather hiking and bike rides. It breathes well during aerobic exercise and the fabric is silky-soft and very comfortable. The cut is long enough for biking or XC skiing, and the trim fit and light weight provide excellent range of motion. On hot, dry Alaska midsummer days this shirt felt great.

Fjallraven Abisko Trail T-Shirt review photo

The Abisko during a sunny ascent up the east ridge of Bird’s Eye Peak. Photo: Brett Frazer.

But my good first impressions were challenged when I wore the Abisko on a drizzly August traverse through the Talkeetna Mountains. Once the shirt got damp I noticed that it was reluctant to dry and quickly cooled me down. Even after adding an ultra heavyweight Arc’teryx mid-layer (my go-to piece for midwinter hikes) over the Abisko I found myself shivering. What exactly was this base layer made from again?

Fjallraven Abisko Trail T-Shirt review photo

Crossing Hatchethead Pass, in the Talkeetna Mountains of Alaska. Photo: Tony Lewkowski.

According to Fjällräven, the Abisko is 85% lyocell and 15% wool. Lyocell is a form of rayon derived from wood pulp. According to Wikipedia “Lyocell shares many properties with other cellulosic fibres such as cotton, linen, ramie and viscose rayon. Some main characteristics of lyocell fibres are that they are soft, absorbent, very strong when wet or dry, and resistant to wrinkles.” Simplifi Fabric writes that “This eco fabric has natural breathability and 50% greater moisture absorption than cotton.” [emphases are mine]

Cotton’s propensity to absorb water and chill a wearer is so undesirable in outdoor clothing that it’s prompted the phrase “cotton kills.” “Lyocell kills” doesn’t really have the same ring, but in my experience it might be equally true. Just about any textile will keep a wearer warm when it’s dry. But for most backpackers, the most important property of a technical base layer is that it remain warm in all conditions, especially when wet. Though the Abisko shines in the sun, it is a liability in wet or rainy conditions. Fjällräven’s decision to market an absorbent, cold-when-wet base layer for general-purpose “trekking” in subarctic wilderness is arguably a little irresponsible.

Fjällräven Abisko Trail T-Shirt: The Bottom Line

Backpackers in hot climates (the American Southwest, for example) often carry a cotton t-shirt so that they can wet the shirt and keep cool. The Abisko t-shirt would work well for this purpose. Its attractive cut and comfortable fabric also make it a good choice for casual front-country wear in good weather. But the Abisko Trail t-shirt doesn’t really belong far from most trailheads. Outdoorspeople in potentially cool to cold-weather climates (such as Sweden’s, ironically) should steer clear of the Abisko and choose base layers made of full synthetics or synthetic-wool blends instead.

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