Paraphrased from the designer’s description:
A double-breasted jacket. A strong jacket, without frills yet with a unique look. The twill yields a strong, textured fabric, but does not get in the way of tailoring. The stockinette edges enhance the woven look of the fabric. The vertical lines of the buttonholes and edging elongate the jacket, giving it an elegant appearance.

Eight 1-inch buttons are needed.