Klättermusen Fjörm Backpack 18L in Slate Brown — front view with mesh front pocket and red buckle
Klättermusen Fjörm Backpack 18L in Slate Brown — back view with 3D mesh back panel and hip belt
Fjörm 18L with the lid open — red drawcord collar of the main compartment, Slate Brown version
Hands holding the Fjörm 18L in Slate Brown to show the ventilated 3D mesh back panel
Side mesh pocket of the Fjörm 18L in Slate Brown holding a pair of gloves, worn close-up
Close-up of the Fjörm 18L shoulder straps, sternum strap and webbing hip belt while worn
Woman wearing the Fjörm 18L in Slate Brown — front view with sternum strap fastened
Woman wearing the Fjörm 18L in Slate Brown — side view of the compact summit pack
Woman wearing the Klättermusen Fjörm 18L in Slate Brown — back view of the summit pack
Woman wearing the Fjörm 18L in Slate Brown — three-quarter back view with mesh side pocket
Klättermusen Fjörm Backpack 18L in Raven — front view with mesh front pocket and red buckle
Fjörm Backpack 18L in Raven — back view with ventilated 3D mesh back panel and webbing hip belt
Close-up of the Fjörm 18L ventilated 3D mesh back panel and 4-S sternum strap in Raven
Klättermusen Fjörm Backpack 18L in Slate Brown — front view with mesh front pocket and red buckle
Klättermusen Fjörm Backpack 18L in Slate Brown — back view with 3D mesh back panel and hip belt
Fjörm 18L with the lid open — red drawcord collar of the main compartment, Slate Brown version
Hands holding the Fjörm 18L in Slate Brown to show the ventilated 3D mesh back panel
Side mesh pocket of the Fjörm 18L in Slate Brown holding a pair of gloves, worn close-up
Close-up of the Fjörm 18L shoulder straps, sternum strap and webbing hip belt while worn
Woman wearing the Fjörm 18L in Slate Brown — front view with sternum strap fastened
Woman wearing the Fjörm 18L in Slate Brown — side view of the compact summit pack
Woman wearing the Klättermusen Fjörm 18L in Slate Brown — back view of the summit pack
Woman wearing the Fjörm 18L in Slate Brown — three-quarter back view with mesh side pocket
Klättermusen Fjörm Backpack 18L in Raven — front view with mesh front pocket and red buckle
Fjörm Backpack 18L in Raven — back view with ventilated 3D mesh back panel and webbing hip belt
Close-up of the Fjörm 18L ventilated 3D mesh back panel and 4-S sternum strap in Raven
Special offer • -20% not combinable
KLÄTTERMUSEN

Fjörm Backpack 18L

136.00€ 170.00€
- Pay in 3x or 4x with
-20% you save 34.00€
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☔ Fully Taped Seams - no rain cover to carry
🌬️ 3D Mesh Back and Straps - air moves on the climb
🎯 4-S Sternum Strap - tension spreads as you move
🪨 Hardur Reinforced Base - takes being set on rock
⚖️ 448 g Summit Pack - built for a 3 kg load

Color
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Chronopost and Colissimo delivery

with Chronopost or on with Colissimo.

free delivery

Free delivery to pick-up points from €60.

Shipping

Branded backpacks comes from our French warehouse and are shipped with secured express shipping only.

Our orders are shipped within 2 days.

Here are some estimates depending on your country, calculated from recent shipments.

🇫🇷 France: 2 business days
🇪🇺 EU: 3 to 6 business days
🇬🇧 UK: 4 to 5 business days
🇺🇸 🇨🇦 North America: 6-9 business days

Returns

If you do not like your product, you have 30 days after receipt to return it, no questions ask.

📧 Step 1: Contact us at info@eikenshop.com to inform us of your desire to return the product. We'll provide you with all the details needed.

📦 Step 2: Ship the order and waits for us to receive it.

💳 Step 3: Once received and inspected, we will refund your order to the payment method used during your order, you do not have to do anything.

bluesign certified responsible textile production
Global Recycled Standard certified recycled materials
PFAS-free materials and finishes
Fjörm Backpack 18L - Slate Brown
Fjörm Backpack 18L Slate Brown136.00€

Volume18 L

Weight448 g

Waterproofingtaped seams

Water columnover 10,000 mm

Klättermusen · Fjörm Backpack 18L

The small pack that needs no rain cover.

The Fjörm 18L has taped seams throughout and a fabric rated at over 10,000 mm: the rain stays out, with no cover to dig for. A lid that closes with a single buckle, a drawcord collar beneath it, two big mesh pockets on the front, a 3D mesh back panel. 448 g all in.

HikingTrail runningClimbing approach

The ridge when the sky turns, the quick outing in the rain, the walk-in to the crag.

The name is thought to come from Fjörm, one of the icy rivers of the Élivágar. From the Edda.

Woman seen from behind at an angle wearing the Fjörm 18L Slate Brown

In the rain · over 10,000 mm, taped seams

Taped seams: the rain stops at the fabric.

Lightly water repellent

300 mm

Drizzle, or brushing past wet branches.

Shower

1,500 mm

A shower on the trail or in town.

Waterproof fabric

10,000 mm and above

Proper rain: the fabric holds, the seams are not taped.

Waterproof

taped seams

Waterproof according to Klättermusen: seams covered with tape.

Whatever sits in the two mesh pockets does get wet, though: that is where the wet jacket goes, not your phone.

3D mesh back panel of the Fjörm 18L Slate Brown, held in both hands

On your back

A mesh back panel that lets air through on the climb.

  1. 3D mesh back panel and shoulder strapsAir moves between the pack and your back when you push uphill, instead of sitting there. Short fit, for a back of 40 to 49 cm.
  2. A four-point sternum strapA cord links each shoulder strap at two points: the pull spreads across your chest, with no single spot digging in.
  3. A webbing hip beltThin, it stops the pack bouncing on descents or when you run. It steadies the pack, it does not carry the load.
Cord sternum strap and webbing hip belt of the Fjörm 18L Slate Brown, worn

Will it fit me?

40 to 49 cm

back length according to Klättermusen

Measure your back before you choose.

  1. Measure your back from the 7th cervical vertebra (the bump at the base of your neck) to the top of your hips, along the spine. Compare with the range above.
  2. Too short or too long? You have 30 days to send it back.

The details

One buckle to open, a drawcord beneath, gloves up front.

Fjörm Backpack 18L Slate Brown from the front, lid closed with its red buckle
The topThe lid closes with a single red buckle, which you can open with gloves on.
Open lid of the Fjörm 18L Slate Brown, red drawcord collar loosened
BeneathA drawcord collar: it cinches in one pull and opens wide to grab a layer.
Gloves stowed in the mesh pocket of the Fjörm 18L Slate Brown, worn
FrontTwo big mesh pockets either side of the centre strap, for gloves, a water bottle or the wet jacket.

In the range

Fjörm 18L, Tjalve 10L, Skrymner 20L or Gilling 20L?

Fjörm Backpack 18L Slate Brown, from the back

Fjörm 18L

18 L · 448 g · taped seams

For the rain: the only one of the four that needs no cover.

You're looking at this model

Tjalve 2.0 Backpack 10L Cloud Berry

Tjalve 2.0 10L

10 L · 320 g · over 300 mm

Take it for the bare essentials: a jacket, water, something to eat, on a short outing.

See the Tjalve 2.0 10L
Skrymner Backpack 20L Dark Teal

Skrymner 20L

20 L · 440 g · over 1,500 mm

Take it to run or walk fast with 20 litres: it wears like a vest, soft flask on the shoulder strap.

See the Skrymner 20L
Gilling Backpack 20L Dark Teal

Gilling 20L

20 L · 560 g · over 1,500 mm

Take it if you walk more than you run: ventilated back panel, hip belt with a pocket, top opening.

See the Gilling 20L

The other three have no taped seams: with them, a rain cover or a dry bag in the rain. Weights according to Klättermusen.

Since 1975

Klättermusen was founded in Umeå, Sweden, and has made mountain packs since 1975. Its packs have been made of recycled polyamide since 2009.

Repair rather than replace

Klättermusen repairs zips, seams and buckles. Outside the guarantee the service is paid, on quotation; Eiken passes the request on.

Care

Empty it and let it dry after the outing, hand wash with a mild soap, reproof if needed.

Eiken's take

Our pick
Along with the Vide, it is the only one of our Klättermusen packs rated waterproof, taped seams included, and it weighs 448 g.
Worth knowing
A thin webbing hip belt, no padding: it carries what a quick outing needs, not a loaded day. And whatever sits in the mesh pockets gets wet.
Who it's for
Quick mountain outings in changeable weather, walking or running, without a rain cover.

Baptiste, Eiken

Specifications

  • Volume18 L
  • Weight448 g according to Klättermusen
  • Dimensions48 × 24 × 16 cm (height × width × depth)
  • Back length40 to 49 cm, short fit
  • Waterproofingtaped seams throughout ("taped 100% waterproof construction")
  • Water columnover 10,000 mm (fabric)
  • FabricRetina®, recycled polyamide (100% post-consumer), Seawastex ripstop
  • Closuresingle-buckle lid, drawcord collar
  • Carry3D mesh back panel and shoulder straps, four-point cord sternum strap, webbing hip belt
  • Pocketstwo big mesh pockets on the front
  • ColoursSlate Brown, Raven
  • Brand reference10557
Returns30 days to change your mind.
GuaranteeLifetime against manufacturing defects, according to Klättermusen (normal wear excluded, original purchaser). Statutory 2-year conformity guarantee. Every claim goes through Eiken, which passes it on to the brand.
RepairsOutside the guarantee, Klättermusen repairs zips, seams and buckles: a paid service, on quotation, request passed on by Eiken.

Questions

What about rain?

Yes: waterproof according to Klättermusen, seams included. It is not made to be submerged.

How much load?

What a quick outing needs: water, lunch, a jacket, a warm layer, gloves. The webbing hip belt steadies the pack, it does not carry: for a loaded day, choose a pack with a proper hip belt.

Will it fit me?

Short fit, for a back of 40 to 49 cm, measured from the bump at the base of the neck to the top of the hips. Fixed, narrow back panel.

Care

Klättermusen publishes no care instructions for this model. Its general rule for packs: empty it, let it dry, hand wash with a mild soap, reproof if needed.