Klättermusen Allgrön 2.0 vs Asynja
Choose Allgrön 2.0 for a fuller-featured stretch shell with underarm vents and a RECCO reflector. Choose Asynja when lower carried weight and a hiking-focused layout are more useful. Klättermusen lists the men’s jackets at 682 g and 347 g.
Based on 146 included owner reviews.
The differences that matter
The Allgrön uses three-layer Cutan and includes harness-compatible pockets, a slanted two-way zip and underarm ventilation. The Asynja also has a slanted two-way zip, but emphasizes high mesh-backed pockets and a compact hiking design. Similar visual styling does not mean identical ventilation.
The listed weight gap is 335 g. That is a substantial difference for a shell that spends much of a day in a pack, but it does not establish equal functionality at half the weight. Decide which adjustments, pocket positions and vent openings you will actually use.
Technical comparison
Allgrön 2.0
Three-layer Cutan waterproof stretch construction. A three-dimensional adjustable hood, underarm vents, a slanted two-way front zip, harness-compatible pockets and a RECCO reflector. The manufacturer lists a weight of 682 g.
Asynja
A fully sealed waterproof shell with Windstretch reinforcement zones. A three-dimensional hood with a brim, a slanted two-way zip, high mesh-backed pockets and adjustable hem and sleeves. The manufacturer lists a weight of 347 g.
What do owners report?
Allgrön 2.0
This product has 103 included owner reviews. Repeated strengths include a comfortable fit (26.2%; 27 reviews); staying dry in rain (15.5%; 16 reviews); and underarm vents helping release heat (8.7%; 9 reviews).
Published drawbacks include body sizing that feels too small (15.5%; 16 reviews) and water getting through the shell in rain (8.7%; 9 reviews).
Read the Allgrön 2.0 owner reviews for the full published findings and revision scope.
Asynja
This product has 43 included owner reviews. Repeated strengths include a comfortable fit (37.2%; 16 reviews); low weight (25.6%; 11 reviews); and staying dry in rain (16.3%; 7 reviews).
Published drawbacks include water getting through the shell in rain (27.9%; 12 reviews).
Read the Asynja owner reviews for the full published findings and revision scope.
These mention shares describe separate owner groups, rather than performance measured under the same conditions.
Which should you choose?
Choose Allgrön if its vents and year-round feature set justify the carried weight. Choose Asynja if you want the lighter hiking layout and its hood and pockets work for you. Test both with a waistbelt before assuming high pockets will sit at the right height on your body.