Mid-weight merino interlock knit baselayer bottom. These pants are made to move. They'll function just as well for downward dog as they will for laps in the backcountry. Made of 100% merino mid-weight interlock knit, they're a touch warmer than the Woolies 1 without losing any of the durability or breathability benefits. Flatlock seams. Gusseted crotch. 2 1/4'' wide comfort waistband. Wide leg cuff detail. Tag-free label. Inseam: XS=29'', S=29 1/2'', M=30'', L=30 1/2'', XL=31''. Material: Wool.