Women's Thermal Leggings S.natural Tundra 175 Merino Wool Base Layer

Unlike standard synthetic base layers that trap moisture and chill you when you stop moving, the S.natural Tundra 175 leggings rely on pure virgin merino wool to regulate your microclimate naturally. The 175 g/m² fabric is light enough for high-output skiing or hiking, yet its crimped fibres create thousands of tiny air pockets that hold warmth when temperatures drop. The result is a slim-fit legging that feels like a second skin without the itch, odour, or clamminess of polyester alternatives.

Highlights

• 100% virgin merino wool (mulesing-free) for natural temperature regulation
• 175 g/m² fabric weight balances warmth and breathability for active winter use
• Inherent anti-odour properties keep you fresh over multi-day trips
• Flatlock seams prevent chafing under ski pants or hiking shells
• Soft, non-itchy hand feel suitable for sensitive skin

In daily use

Pull these leggings on under insulated trousers for a day on the slopes, or wear them as a standalone layer for cold-weather trail running. Merino wool actively wicks sweat away from your skin, then releases it to the outside air, so you stay dry during steep climbs and warm on the descent. The elastic waistband stays put without digging in, and the slim cut layers cleanly under mid-layers without bunching. Because wool is naturally odour-resistant, you can wear them multiple days in a row without washing—ideal for hut-to-hut tours or winter camping.

Full specifications

• Material: 100% virgin merino wool
• Fabric weight: 175 g/m²
• Fit: Slim
• Waistband: Elastic
• Seams: Flatlock
• Odour control: Natural anti-odour properties
• Moisture management: Excellent wicking
• Breathability: High
• Thermal insulation: Warm (Odlo classification)
• Temperature regulation: Natural
• Recommended use: Skiing, snowboarding, hiking, winter sports, everyday cold weather
• Care: Machine washable at 30°C gentle cycle; do not tumble dry; do not bleach
• Sustainability: Renewable, biodegradable, mulesing-free merino wool

Final note

For women who demand performance without compromise, the Tundra 175 leggings deliver the warmth of wool, the comfort of a second skin, and the peace of mind that comes from a fully natural fibre.