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The Bergtagen Longjohns are quite possibly the warmest baselayer trousers available; they combine four variations of wool and a technical mountain fit to ensure warmth, comfort and mobility in the coldest winter conditions. 
The Bergtagen Longjohns are quite possibly the warmest baselayer trousers available; they combine four variations of wool and a technical mountain fit to ensure warmth, comfort and mobility in the coldest winter conditions. 
Fjallraven

Fjallraven Mens Bergtagen Longjohns Grey

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90-day returns period

We hope that you are perfectly happy with your order from Trekitt, but we understand that you may want to return your purchase. We offer a 90 days return period from the date of purchase, and endeavour to process all returns within 48 hours of receipt.

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The Trekitt Returns Policy Includes...
A 90 day return period and the Trekitt 2-year Common Sense Guarantee.

Exemptions
PPE (Facemasks, Climbing Equipment etc. ), Food Goods, Socks & Underwear can only be returned if they have not been worn and/or removed from their original packaging with all swing tags still attached. If there is any sign or possibility that the goods have been used, tampered with or contaminated in any way, then we cannot accept a return on the grounds of consumer safety. Zips are typically not covered under a manufacturer's warranty.

The above does not affect the Consumer Contract Regulations. Click here to read more.

Fjallraven Mens Bergtagen Longjohns Grey

Season:ZZZ Discontinued

Brand:Fjallraven

Code:83991-020-

The Bergtagen Longjohns are probably the warmest baselayer trousers available at this point in time. Combining four different variations of wool, they provide warmth, comfort, mobility and stretch in some of the coldest conditions imagineable. 

Insulation is provided by four different variations of wool: wool mesh, terry, rib and interlock. Wool terry is used in areas which require the highest levels of warmth such as the crotch, knees and rear, while mesh is used on areas which require breathability, moisture wicking and mobility such as the thighs, back of the knees and lower leg. Wool rib is used in areas which require higher levels of comfort (wool rib features a higher quantity of wool than the others) such as the waist, while wool interlock is used during the stiching process. Overall, this differentiation between several different weights, designs and patterns means you're getting warmth and moisture wicking where you need it, and ventilation and mobility in areas where you don't. As if that wasn't enough, wool is brilliant at wicking away sweat and will resist odours, meaning you can wear them for a few days without smelling like a skip. 

Traditional (or cheap) wool has always sparked a memory of itchy, loose fibres causing irritation and general discomfort, however Fjallraven's Merino Wool is so fine that even the most sensitive skinned of users will remain comfortable in cold conditions. Couple this with a smooth knit on the outer of the baselayer to allow additional layers to slide effortlessly over the top and you're onto a winning combination. 

For super cold conditions, whether that's winter mountaineering, polar expeditions, walking in a winter blizzard or simply for someone who feels the cold, the Bergtagen Longjohns are ideal. One last note to mention is that all of the merino wool used is mulesing-free and traceable back to the farm of origin. 

  • Comfortable next to skin
  • Slides easily under additional layers
  • Thicker wool in areas which require warmth
  • Venting in areas prone to heat build up
  • Comfortable waist and ankle cuffs
  • Moisture wicking
  • Highly breathable
  • Odour resistant
Technical Information

Weight: 215g

Materials: 

Wool mesh: 80% wool, 20% polyamide

Wool terry: 52% wool, 35% polyester, 13% polyamide

Wool rib: 95% wool, 5% elastane

Wool interlock: 100% wool

Sizing Information
Jackets & Tops

Men's Body Measurements (cm)

International SizesXSSMLXLXXLXXXL
Chest869298104110116122
Waist7278849096102108
Seat8894100106112118124
Arm length8384,58687,58990,592


Trousers

Men's Body Measurements (cm)

EU Sizes4244464850525456586062
UK Sizes2829303234363840424446
US Sizes2829303234363840424446
Waist72768084889398104110116122
Seat84889296100104108113118123128
Inner Leg Length (Regular)8080818182828383848484

INTL SizesXXSXSSMLXLXXLXXXL
Waist7076828896104113122
Seat828894100106113120128
Inner Leg Length (Regular)8080818283838484

Men's Body Measurements (in)

EU Sizes4244464850525456586062
UK Sizes2829303234363840424446
US Sizes2829303234363840424446
Waist28.329.931.533.134.636.638.640.943.345.748
Seat33.134.636.237.839.440.942.544.546.548.450.4
Inner Leg Length (Regular)31.531.531.931.932.332.332.732.733.133.133.1

INTL SizesXXSXSSMLXLXXLXXXL
Waist27.629.932.334.637.840.944.548
Seat32.334.637.039.441.744.547.250.4
Inner Leg Length (Regular)31.531.531.932.332.732.733.133.1

Trouser Lengths (cm)

EU Length SizeShortRegularLong
UK Length Size (in)30"32"34"
US Length Size (in)30"32"34"
Inner leg length (cm)768186
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