Fjallraven Men’s Bergtagen Thinwool Long Johns Tight

The Fjallraven Men’s Bergtagen Thinwool Long Johns Tight is a merino wool base layer for warmer weather trips into the alpine. Spring and summer can be pretty toasty, but up in the alpine the temps drop. Besides just adding the extra layer you need to make it to the top, the main function is to maintain comfort next-to-skin. They naturally regulate temperature, wick moisture away from the skin and dry fast so your adventure is comfortable, at least when it comes to your lower half.