FZN Stands for Five Zero Nine, not Frozen. The 509 FZN Merino base layer collection makes sure of that. This Merino wool blend is high performance and comfortable in all conditions. Comparing our 509 Wool to grandpas scratchy Wool is like comparing your RMK to his 1978 Panther. Our Merino wool is a 20 micron Merino wool natural fiber with incredible moisture management, and Temperature management capabilities.

Features

• Balaclava hood is fitted for use under a helmet
  
• Covert Collar is tucked away in collar when not needed, or pull out for full face coverage
  
• Alpine Merino - 250 GSM 20 micron wool, blended with 40% Bamboo Viscose, and 10% nylon for structure and durability
  
• Warmth : LVL [2]