ColdPruf Women's Platinum Dual Layer Bottom blend Imported BaSse-layer-underwear closure Machine Wash Two-layer engineering with Merino wool, traps air between layers providing a natural barrier of warmth Pant sits at natural waistline. Front and back rise provides an exceptionally comfortable fit and maintains coverage during various activities Tagless labeling, non-itch waistband and gussets for added durability and comfortable fit Moisture management system wicks perspiration and dries quickly Featuring ColdPruf Technical Fiber formulated with Silvadur Intelligent Freshness to minimize odor and odor causing bacteria on fabric Perfect as a base layer. Best used for layering in very cold to extreme cold weather and medium to high activity levels