The 509 FZN Women's Merino Pant provides versatile midweight warmth with a Merino wool blend that is high performance and comfortable in all conditions. Naturally soft, breathable, fast-drying, and odor-repellent-all without the itch of conventional wool-this unique knit is far superior to conventional fabrics. Stretch properties and an ergonomic fit add mobility for smooth and easy layering under your outerwear.