The Lurbel Manaslu Five are unisex thermal socks with H5 height (12–18 cm above the shoe), designed for trekking and activities in extreme cold (–25 °C to –5 °C). They are seamless around the perimeter and combine merino wool with Mulberry silk, a natural blend that improves heat retention, breathability, and comfort. Their Bmax Merino Silk technology incorporates Regenactiv, wool, and silk to prevent blisters, manage moisture, and protect the skin. The Total Cushioning plantar structure offers a fully padded base for soft strides. Additionally, the Antiodour Base Layer mesh provides a durable antibacterial and anti-odor barrier. A technical, warm, and comfortable choice for mountain routes or winter expeditions.