Coldpruf Men's Classic Base Layer Pant 100% Merino Wool Imported Soft, lightweight 100% Merino Wool in a single layer jersey knit able to move with wearer's body and stretch while maintaining its shape 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 Naturally occurring moisture management wicks perspiration and dries quickly Perfect as a base layer. Best used for layering in cold to very cold weather and medium to high activity levels