Every single item we make, is backed by our Go Far. Feel Good.™ Guarantee—ensuring you’re 100% satisfied with every Smartwool purchase. 100% Merino Wool Imported Button closure MACHINE WASH COLD GENTLE CYCLE. WASH WITH LIKE COLORS. COLD WEATHER BASE LAYER. With a fit that improves functionality while enhancing aesthetics for a range of body shapes, comfort is never in question. Get yourself a pair or two of our best base layer pants and conquer the cold with more confidence. MID RISE. Crafted with comfort in mind, this mid rise pant sits high on the hips just slightly below the belly button, showing off a slimming silhouette while offering unrestricted movement through the legs. Inseam: 30.5" CLASSIC THERMAL MERINO. Ideal for cold-weather activities where warmth and breathability are crucial, this fabric used a 100% Merino wool construction that helps move moisture away from skin to keep you warm and dry. WHY MERINO WOOL? Thinner and softer than regular wool, it's easy to wear next to skin. Each fiber transports sweat away as a vapor (we tested it ourselves) and regulates body temperature to keep you cool in summer and warm in winter. FUNCTIONAL FEATURES. Go far, feel good with thoughtful tech to keep you trekking comfortably — a merino-covered elastic waistband offers maximum comfort while a flatlock seam construction minimizes chafing.