Fjallraven Bergtagen Thinwool Long Johns Women is a comfortable pair of long johns in merino wool for alpine trips in the spring and summer. Wool wicks away moisture and helps keep you at a comfortable temperature when activity levels vary. It also has a totally natural resistance to bad odours. Just like all our Bergtagen base-layer garments, they are made from merino wool that is mulesing free and can be traced back to its farm of origin.