The Trekking Expedition was designed for extreme cold environments and long-duration winter activities. Born from feedback from professional mountaineers who found wool socks too tight, it relies on Polartec® Power Stretch and Primaloft® rather than wool thickness: extreme warmth, dry feet, and no dangerous compression. Each pair is hand-sewn in Spain with a distinct shape for the left and right foot.
Main features
- Maximum thickness (4 out of 4) with cushioning on the shin and sole
- Double layer of Polartec® Power Stretch: windproof and abrasion-resistant exterior
- Primaloft® insulation that traps heat and wicks away moisture
- Distinct anatomical left/right foot shape for circulation
- Hand-sewn in Spain
Materials
- 78% Polartec® Power Stretch
- 11% Primaloft®
- 8% nylon
- 2% Thermolite®
- 1% stretch nylon with Lycra®
Highlights
✔️ Extreme cold and high altitude: the warmest sock in the range
✔️ Fits like a normal sock, without slipping or compressing the foot
✔️ Durable exterior resistant to wind and abrasion, soft interior that keeps the foot dry
