The Sinclair Insulated Flannel has all the trappings of a regular ol’ flannel button-up, but it has a secret weapon you can barely notice from the outside: It’s stuffed with 40 grams of Spaceloft™ micropuff insulation for added warmth. Brushed tech flannel on the outside adds warmth and comfort and a smooth taffeta lining on the inside and quick metal snap buttons make the Sinclair easy to take on and off.

• 1 chest pocket, 1 internal chest pocket
  
• Duraflex metal snaps
  
• Average weight: 635g
  
• 100% polyester flannel & lining
  
• 40-gram Spaceloft™ insulation
  
• Regular fit. A traditionally cut fit that sits comfortably and true to size. Not too baggy; not too tight