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Product guide

Mammut Runbold Winter SO Men’s Trousers, model 1021-01380

Mammut Runbold Winter SO trousers are warm soft-shell hiking trousers described for cold-weather outings. Their fleece lining and side ventilation zips are intended to balance warmth and temperature regulation during climbs.

At a glance

  • Three-layer soft-shell construction with a soft fleece lining is described for cold-weather hikes.
  • Side zips are intended to provide ventilation after strenuous climbs.
  • Secured pockets and adjustable cuff drawstrings offer storage and fit adjustment.
Price
£90.90Save 15%

Reference price: £106.99

Price checked: 14 Nov 2026

View offer

Pros and cons

Pros

  • The combination of a fleece lining and soft-shell construction is tailored to cold-weather hiking.
  • Side ventilation zips provide a way to release heat during strenuous climbs.
  • The description specifies secured pockets and adjustable cuffs.

Technical specifications

9 specifications
Identity
BrandMammut
Model1021-01380
DepartmentMen's
Construction and features
Shell construction3-layer soft shell
Liningsoft fleece lining
Material sourcing claimAlmost completely recycled
Ventilationzippers on the sides to allow ventilation
Pocketssecured pockets
Cuff adjustmentdrawstring at the cuff

Who is it for?

A good fit for

  • Hikers looking for lined soft-shell trousers for cold winter days.
  • Walkers who want side ventilation and adjustable cuffs for changing effort or fit.
Mammut Runbold Winter SO Men’s Trousers, model 1021-01380 · photo 2
Additional product photo 2

Customer reviews on Amazon

4.9 / 5 · 19 ratings
  • 5 stars92%92%
  • 4 stars8%8%
  • 3 stars0%0%
  • 2 stars0%0%
  • 1 star0%0%

Aggregate ratings are strongly positive, with nearly all ratings in the top two star categories. Without written customer feedback, the ratings do not show what buyers liked or any specific drawbacks. The stated fleece lining, soft shell and ventilation features indicate a cold-weather hiking focus, but do not establish customer experience or performance.

Frequently asked questions

Are these trousers intended for winter hiking?

The product description presents them as warm soft-shell trousers for cold winter-day hikes, with a fleece lining.

Can you adjust ventilation while hiking?

The description specifies zips on the sides to allow ventilation, particularly for temperature regulation after strenuous climbs.

Do the cuffs adjust?

Yes. The description says the cuffs have drawstrings for adjustment.

Are the trousers described as waterproof?

The listing says the soft shell helps keep out wet conditions, but it does not provide a waterproof rating or a specific performance standard.

Mammut Runbold Winter SO Men’s Trousers, model 1021-01380 · photo 3
Additional product photo 3

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