Steeped in tradition and history, the iconic commando sweater worn in World War II by the British S.A.S. is the inspiration for this sweater. Fabric & Care 100% merino lambswool, 21 oz. Shoulder and elbow patches: 100% cotton. Handwash and dry flat, or dry clean. Size & Fit Slightly Fitted: Formerly known as Trim Fit, our Slightly Fitted Sweaters are relaxed through the chest and sleeves and have a slightly slimmer waist.