Women's under-tights made of Wai-po-ua merino wool, lightweight model (thin). Product Description: These comfortable garments are suitable for both outdoor activities and everyday wear, utilizing the natural warmth, moisture-wicking properties, and flame resistance inherent in wool. Wai-po-ua uses specially processed, ultrafine wool fibers, making them comfortable to wear without itchiness, and easy to care for – they are machine washable. They excel at sweat absorption and quick drying, with 40 times the moisture-wicking ability of polyester and 1.8 times that of cotton, preventing chills after sweating during breaks. Furthermore, wool contains metal ions, which provide a natural antibacterial effect that inhibits the growth of bacteria, preventing unpleasant odors. Lightweight Model: Made with 17.5-micron ultrafine wool fibers in a thin 140g/m2 fabric. Ideal for summer, layering in cold weather, and suitable for all four seasons. [Material] 100% Merino Wool (140g/m2) Unused, but the outer packaging is not very clean due to aging. Please purchase only if you do not mind.