First Ascent Men's Bamboo Thermal Long Johns expedition boots in these breathable runners that

in these breathable runners that are built to go the distance

Ultralight and Minimalist mats

Elastic (Amplify) stitching to minimize heat loss around hips and knees on outside shell and full elastic inside of bag but gives you room when you need it

The 1/3-length zippers on either leg with snap-adjust bottom hems and an elastic waist with internal drawcord give you a customized fit

First Ascent Men's Bamboo Thermal Long Johns expedition boots in these breathable runners thatDescription The Men's Bamboo Thermal Long John Baselayer has excellent thermal properties to keep you insulated during your next run, cycle or hike. Made from a unique blend of Bamboo which hosts natural anti bacterial properties that reduce odour, so you can confidently perform at your best. The natural silky feeling of the Bamboo fabrication is ultra soft, making it a more comfortable baselayer. Offering lightweight warmth and a next to skin