Volume18 L
Weight314.5 g
Laptopup to 16 inches
Back length47 to 52 cm
Klättermusen · Gjalp Backpack 18L
The same pack at the office and on the trail.
The Gjalp opens wide on a zip, holds a 16-inch laptop in its sleeve and your jacket in a big diagonal pocket. It takes a hydration bladder, rides close to your back on slim shoulder straps, and weighs 314.5 grams empty.
Hiking · City · Travel
The office in the week, the trail on Saturday, the Sunday evening flight.
The name is thought to come from Gjálp, the giantess who swells the river Vimur before Thor. From the Edda.

Laptop
A 16-inch, slid in flat.
The sleeve is inside, and the zip opens the pack right up: the laptop goes in flat, the clothes stay beside it. The fabric is thin: for a fragile laptop, add a padded case.
Up to 16 inches
Internal sleeve for a 16-inch laptop.
- MacBook Air 13"
- MacBook Air 15"
- MacBook Pro 14"
- MacBook Pro 16" · stated
- PC 15.6"

Will it fit me?
47 to 52 cm
back length according to Klättermusen
Measure your back before you choose.
- 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.
- Too short or too long? You have 30 days to send it back.
Weight
314.5g
Less than a full can.
Empty, the Gjalp weighs 314.5 grams. The saving comes from a thin fabric, 70 denier at 78 g/m²: this is a pack for a light day, not one to load with heavy gear.
- a phone200 g
- Gjalp 18L314.5 g
- a 330 ml can350 g
- a full 500 ml bottle600 g
- a full one-litre bottle1,050 g
Weight according to Klättermusen.
The details
The jacket up front, water over the shoulder, the straps set.



Klättermusen was founded in Umeå, Sweden, and has made mountain packs since 1975. Its packs have been made of recycled polyamide since 2009.
Klättermusen repairs zips, seams and buckles. Outside the guarantee the service is paid, on quotation; Eiken passes the request on.
Empty it and let it dry after the outing, hand wash with a mild soap, reproof if needed.
Eiken's take
- Our pick
- One pack for the office and the trail: a 16-inch laptop, a hydration bladder and a jacket in 314.5 grams.
- Worth knowing
- The fabric is thin and there is no hip belt: in proper rain, a rain cover; beyond a few kilos, your shoulders carry it all.
- Who it's for
- Anyone who carries a big laptop all week and walks on Saturday with the same pack.
Baptiste, Eiken
Specifications
- Volume18 L
- Dimensions38 × 30 × 16 cm (height × width × depth)
- Weight314.5 g according to Klättermusen
- Back length47 to 52 cm, regular fit
- Water columnnot stated
- FabricRetina®, 100% recycled polyamide (50% post-consumer, 50% pre-consumer), 70 denier, 78 g/m², PU coating
- Laptopinternal sleeve, up to 16 inches
- Openingfull-opening zip
- Pocketsbig zipped pocket on the front
- Carryergonomic shoulder straps, sternum strap, fixed narrow back panel, no hip belt
- Alsohydration bladder compatible, pole carry provided, double loop webbing on the shoulder straps
- ColoursRaven
- Brand reference40456U21
Questions
Does it keep the rain out?
No water column according to Klättermusen. The fabric is coated, but it is thin and the zip is not waterproof: in real rain, a rain cover protects the laptop.
Will it fit my back?
Regular fit, for a back of 47 to 52 cm, measured from the bump at the base of the neck to the top of the hips. The back panel is fixed.
Does it go in the cabin?
As cabin baggage (55 × 40 × 20 cm), yes: it is soft and flat. Under the seat on budget airlines (40 × 30 × 20 cm), no guarantee.
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.




