THORLO'S Extreme Cold Over Calf Mountaineering Socks - Navy (EU 38-42)

When the climb takes you into sub-zero conditions, the THORLO'S Extreme Cold Over Calf Mountaineering Socks are engineered to keep your feet warm and dry. Built with THOR•LON® acrylic fiber, this model delivers maximum warmth while actively wicking moisture, making it a reliable choice for high-altitude expeditions and winter hikes.

Highlights

• Maximum warmth with heavy cushioning for extreme cold weather
• Over calf length provides extra coverage and protection
• THOR•LON® fiber technology for superior softness, resilience, and durability
• Reinforced heel and toe for increased longevity
• Elasticized arch support for a secure, comfortable fit
• Low-profile toe seam prevents irritation inside boots

In daily use

Slip into these mountaineering socks and feel the immediate difference. The plush cushioning absorbs impact on rough terrain, while the moisture-wicking THOR•LON® fibers keep your feet dry even during intense exertion. The over calf height ensures your lower legs stay warm, and the reinforced areas withstand the rigors of heavy packs and rocky trails.

Full specifications

• Material composition: 85% THOR•LON® Acrylic, 13% Nylon, 2% Spandex
• Product type: Mountaineering socks
• Sock length: Over calf
• Cushioning level: Heavy cushioning
• Thermal rating: Maximum warmth
• Moisture management: Excellent wicking properties
• Arch support: Elasticized for enhanced fit
• Seam type: Low-profile toe seam
• Durability features: Reinforced heel and toe
• Size: EU 38-42 (fits US Men's 7-10 / US Women's 8.5-11.5)
• Gender: Unisex
• Pack quantity: 1 pair
• Care instructions: Machine wash warm, tumble dry low, do not bleach

Final note

Whether you're summiting a peak or braving a winter trail, these socks offer the warmth, support, and durability you need. Trust THORLO'S to keep your feet comfortable when the weather turns brutal.