All great systems have a solid foundation, and that&';s why we&';ve created our Solution 150 Baselayer Full-Length Bottoms. Designed as the ultimate foundation for your skin-to-environment layering system, the Solution 150 Baselayer Bottoms feature NuYarn&';s innovative patented NuYarn stretch merino wool-a fabric that&';s stronger, warmer, and dries faster than other merino wool fabrics by utilizing the technology of wrapping a nylon core with extra-fine merino fiber. This technology gives the Solution 150 Baselayer Bottoms superior thermoregulation and moisture management, plus they are naturally bacteria and odor resistant, making them the perfect next-to-skin layer for high-output activities in the mountains.