Built for extreme cold and high-altitude expeditions, this heavyweight sock delivers unmatched warmth and resilience.
Merino Performance Fusion Technology ensures insulation, moisture control, and durability.
Cushioned throughout with zonal support for all-day comfort in harsh conditions.

Features List

• Heavyweight cushioning for maximum warmth and impact resistance
• Merino Performance Fusion Technology for insulation and moisture wicking
• Boot-length design ideal for extended cuff footwear
• Advanced zonal padding system for targeted support
• Flat Toe Seam prevents cold spots and irritation
• Elasticated arch and 3D heel cup for secure fit
• Thermo Fit process maintains shape after washing
• Performance Fit prevents slipping or bunching
• Tested in extreme cold by professional explorers