The front and adjustable cuffs secure with virtually indestructible metal-shank buttons

supple leather for generations of daily wear

The fabric based on vintage flannels from the 1970s and sure to be a go-to favorite

Removable sheepskin-shearling patch for drying flies

There simply is no insulation that is warmer and lighter

filson man insulated flannel jac shirt fmosh0026w1335 425 FilsonRuggedTwillBrief The front and adjustable cuffsBased on vintage archive designs, our Insulated Flannel Jac Shirt is a go to for cold temperatures. The cotton flannel is brushed on both sides for outstanding softness. Quilted through polyester insulation traps heat close to the body. Classic button front and spread collar design. Chest pockets protected by buttoned flaps. Low set welted hand pockets. Shirttail hem. 2 box quilt pattern.