When you pick up a Fjällräven Kånken or Greenland backpack, the first thing you notice is the fabric. It's not nylon, not polyester — it's Vinylon F, a material that has defined the brand's aesthetic and functionality for over 40 years. This article takes an in-depth look at Vinylon F: what it is, why Fjällräven uses it, how it performs in real-world conditions, and how to care for it. Whether you own a Kånken Classic or a Greenland No. 1, understanding Vinylon F will help you get the most out of your pack.

What Is Vinylon F?

Vinylon F is a synthetic fiber developed in Japan in the 1950s. It belongs to the polyvinyl alcohol (PVA) fiber family. Unlike common nylon or polyester, Vinylon F has a unique molecular structure that gives it high tensile strength, low elasticity, and excellent resistance to UV radiation and chemicals. Fjällräven adopted it in the 1970s for its backpacks because of its durability and water repellency without the need for chemical coatings.

Key properties:

  • High abrasion resistance — outlasts many nylons in rough use.
  • Low moisture absorption — dries quickly and resists mildew.
  • UV stable — won't degrade in sunlight like some synthetics.
  • Static resistance — less prone to attracting dust.
  • Biodegradable under certain conditions — a rare trait for synthetics.

Vinylon F is not a waterproof membrane; it's a densely woven fabric that swells when wet, closing its pores and becoming highly water-resistant. This is why Fjällräven backpacks can handle rain without a separate rain cover for moderate showers.

History of Vinylon F at Fjällräven

Fjällräven founder Åke Nordin was always experimenting with materials. In the early 1970s, he discovered Vinylon F in Japan and recognized its potential for outdoor gear. The first backpack to use Vinylon F was the Greenland No. 1 in 1974, followed by the Kånken in 1978. The fabric's matte finish and earthy colors matched the brand's Scandinavian design ethos.

Over the decades, Vinylon F has become synonymous with Fjällräven. While many competitors moved to high-tech nylons and polyesters, Fjällräven stuck with Vinylon F for its iconic models. Today, it's still used in the Kånken, Greenland, Foldsack, and some special editions. The fabric is produced in Japan and then shipped to Fjällräven's factory in Vietnam for assembly.

Vinylon F vs. Other Backpack Fabrics

To understand Vinylon F's place, it helps to compare it to common alternatives:

Vinylon F vs. Nylon

  • Nylon is stronger per weight, but Vinylon F has better abrasion resistance in dry conditions.
  • Nylon absorbs water and becomes weaker when wet; Vinylon F becomes more water-resistant.
  • Nylon can degrade in UV; Vinylon F is UV-stable.
  • Nylon is cheaper and more common; Vinylon F is niche and more expensive.

Vinylon F vs. Polyester

  • Polyester is lightweight and dries fast, but lacks the unique water-swell effect of Vinylon F.
  • Polyester is less abrasion-resistant than Vinylon F.
  • Polyester can be coated for waterproofing, but coatings wear off; Vinylon F's water resistance is intrinsic.

Vinylon F vs. Cotton Canvas

  • Canvas is heavy, absorbs water, and rots; Vinylon F is lighter, water-resistant, and rot-proof.
  • Canvas has a natural look but requires waxing for water resistance; Vinylon F needs no treatment.

For most urban and light outdoor use, Vinylon F offers an excellent balance of durability, weather protection, and low maintenance. For heavy-duty hiking, nylon or polyester with a waterproof coating might be preferred — see our best hiking backpacks guide.

How to Care for Vinylon F

Vinylon F is low-maintenance but requires some specific care to preserve its properties.

Cleaning

  • Use a soft brush and lukewarm water. Mild soap (like Fjällräven's Greenland Wax Soap) is fine.
  • Do not machine wash — the agitation can damage the fabric's structure.
  • Rinse thoroughly and air dry away from direct heat.
  • For stains, spot clean with a damp cloth.

Waxing

Vinylon F does not require waxing, but applying Greenland Wax can enhance water repellency and give a vintage look. Waxing also stiffens the fabric slightly. If you choose to wax, follow the same method as for G-1000: rub the wax block on the fabric and melt it with a hairdryer. However, waxing is optional — most users never wax their Vinylon F packs. Learn more in our waxing guide.

Repair

Vinylon F is tough, but not indestructible. Small tears can be repaired with patch kits or duct tape. For zipper or strap issues, see our repair guide. Fjällräven also offers repair services in some countries.

Real-World Performance

Users report that Vinylon F backpacks last for decades. The fabric develops a patina over time, softening slightly but retaining strength. It handles rain well — a soaked Kånken will keep contents dry for a while, but prolonged heavy rain may lead to seepage through seams. The fabric dries quickly once the rain stops.

One common complaint is that Vinylon F can feel stiff, especially when new. It softens with use. It's also heavier than modern nylons — a Kånken Classic in Vinylon F weighs about 400 grams, while a similar-sized polyester pack might weigh 300 grams. However, the durability offsets the weight for many users.

Vinylon F is not breathable, so back sweat can be an issue in hot weather. Fjällräven addresses this with padded back panels on some models.

Models That Use Vinylon F

As of 2025, these Fjällräven backpacks are made from Vinylon F:

  • Kånken Classic (all sizes) — the iconic school backpack. See our review.
  • Kånken No. 2 — a waxed version with leather details.
  • Greenland No. 1 — the original top-loader. See our review.
  • Foldsack No. 1 — a roll-top daypack. See our review.
  • Kånken Laptop — a padded version for laptops. See our laptop insert guide.

Limited editions and collaborations sometimes use Vinylon F in different colors. The fabric is also used in some Fjällräven bags and accessories, like the Kånken Hip Pack.

Environmental Considerations

Vinylon F is a synthetic fiber, but it has some environmental advantages. It is biodegradable under specific conditions (industrial composting), though this is not widely available. The production process uses less energy than nylon and polyester. Fjällräven sources Vinylon F from Japan, which has strict environmental regulations.

However, Vinylon F is not recycled into new fibers easily. Fjällräven's sustainability efforts include using recycled polyester in some newer models, but Vinylon F remains a virgin material. The durability of Vinylon F means packs last longer, reducing waste.

Where to Buy Vinylon F Backpacks

Fjällräven Vinylon F backpacks are available worldwide. In Germany, you can buy them at outdoor retailers like Globetrotter, SportScheck, and online at Amazon. For deals, check our outlet deals page. Prices: Kånken Classic starts at €80, Greenland No. 1 at €150, Foldsack No. 1 at €120.

Conclusion

Vinylon F is more than just a fabric; it's a cornerstone of Fjällräven's design philosophy. Its unique water-swell technology, durability, and matte aesthetic set it apart from mainstream materials. While it has quirks — stiffness, weight, and limited breathability — it offers a longevity that many modern fabrics lack. If you value tradition, longevity, and a low environmental impact through durability, Vinylon F is an excellent choice. For more on choosing the right backpack, see our complete guide.

Related articles

  • The Complete Guide to Choosing the Perfect Fjällräven Rucksack
  • Kånken Classic Review
  • Greenland No. 1 Review
  • Foldsack No. 1 Review
  • How to Clean Your Fjällräven Backpack