What is a Shirtjac? Quite simply it's a shirt-jacket combo that makes an excellent work shirt and layering piece. Built for stylish, comfortable warmth with minimal bulk, the Dover Wool Shirtjac draws on the classic stylings of a button-down shirt. This lined shirt features two chest pockets with snap closure and two hand pockets lined with quick-dry fleece for chilly early morning starts. Wool material provides warmth and comfort - Exterior Fabric: 460gsm 70% Wool, 30% Nylon Poly blend Classic Fit 4 pockets Chest pockets with snap closure Hand warmer pockets with quick-dry fleece lining Premium branded metal snaps on center front, pockets, and cuffs Adjustable cuff with snap closure Men's Size Chart