Terramar HOTTOTTIES Thermawool Superfine Merino Wool Pants - Women's wool Constructed of Thermawool 100% mercerized supersoft merino wool jersey, a Terramar-exclusive fabric. 1x1 rib trim. Yoga-style waistband. Unique natural qualities include breathable moisture management and anti-microbial odor control. Flatlock seam construction for comfort and durability; soft and non-chafing next to skin.