A workwear collection so tough, Sitka's product team ran out of durability tests. The updated Sitka Grindstone Work Jacket 2025 retains its Primaloft® Silver insulation for plenty of warmth and still boasts 100% windproof protection thanks to WINDSTOPPER® by GORE-TEX LABS. But a new exceptionally durable laminated fabric – the result of a collaboration between Gore and Cordura® - marks our most durable layers to date.

FEATURES:

• Exterior crafted from 100% nylon Cordura® Oxford fabric
  
• WINDSTOPPER® by GORE-TEX LABS makes the jacket 100% windproof
  
• 100 grams PrimaLoft® Silver synthetic insulation
  
• Rigid, adjustable hood with low-profile Cohesive® welded cord locks
  
• Center front zipper with windbreak
  
• Magnet-closure chest pockets and auto-lock zippered chest pocket
  
• Secure handwarmer pockets
  
• Additional zippered pocket at back hem
  
• Lycra storm cuffs
  
• Drop tail hem
  
• Constructed with the sustainable GORE® EPE laminate
• SKU: 600507