MCCALL'S M8638 is a paper sewing pattern for a loose-fitting, lined men's double-breasted jacket in sizes S–XXXL. The design includes a large notch collar, long two-piece sleeves with working vents, side panels and pockets in the side-front seams. View A adds a contrast upper collar, and two jacket lengths are included. Recommended fabrics include canvas, denim, synthetic leather, twill and wool blends. Sewing level: intermediate.