Insulated Flannel Jac-Shirt - Field Olive ev_flash_deal_q3_2025 the unstructured collar lies flat

the unstructured collar lies flat to keep you cool

lending a distinctive Western flair

The partnership between Filson and Stetson traces back more than a century

The left chest pocket is slotted for small tools or a carpenter pencil

Shelter Cloth waxed cotton can be rewaxed over the years to maintain its water resistance

Insulated Flannel Jac-Shirt - Field Olive ev_flash_deal_q3_2025 the unstructured collar lies flatBased 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.