Designed for thermo-versatility to zip up for warmth or down to dump heat, the Flatiron 185 1/4 Zip is as solid and dependable as its namesake rock formation in Boulder.

Features:

• Superior bluesign® approved 185 gsm Nuyarn merino fabric technology:
• Superfine 18-micron non-mulsed Australian merino Wool for maximum softness and wearability
  
• 35% more loft, volume and aeration without the added weight
  
• 5 times faster drying
  
• 50% more durable compared to traditional ringspun merino wool fabrics
  
• 35% more stretch - A permanent stretch solution with no elastane
  
• 53% less wind permeable
  
• Naturally odour resistant
  
• 30% fewer raw materials - Merino wool is 100% renewable and biodegradable, and also uses significantly less energy and water in its production
  
• Incredible stretch and recovery
• Engineered seam and eyelet placements for increased mobility and breathability
• No-chafe flatlock seams
• Gusseted armpits
• Machine washable
• Hang-dry loop
• YKK zipper
• Easy fit - A performance fit that allows ease over the body for added comfort and versatility
• Materials: 91% Superfine Nuyarn® merino wool, 9% Nylon