Filson Men's Beartooth Jac-ShirtA warm and comfortable 3 season overshirt. Beartooth Jac Shirt is a thick overshirt with multi season versatility. The blanket weight cotton works well as an outer layer on cool days and can be worn under a jacket during the winter. The cotton double cloth is brushed on both sides for comfort and warmth. It features snap flap chest pockets with a layered slotted utility pocket on the left side, plus angled entry welted hand pockets. Double layer