VTG Levi's Action Suit Vest Waistcoat Beige 70s Western Regency Mens M? no size

This vest is in good preowned condition. I don't see any flaws. I think it probably original came as part of a set, so it doesn't have a size or material content tag that I can find. Please check measurements for fit. Approximate measurements: Pit to pit 20" Shoulder to hem 26" at longest Keywords: Levi's, men's vest, bomber jacket, wool blend, brown vest, vintage, casual wear, fall fashion, button closure, classic style, medium size, pre-owned, men's fashion, short jacket, sophisticated. Brand: Levi's Type: Vest Size: M Style: Bomber Jacket Outer shell material: Wool Blend Color: Brown Department: Men Closure: Button Fabric type: Wool Occasion: Casual Vintage Chest size: 40 in Lining material: Satin Features: Two front pockets, Timeless design Jacket/coat length: Short Pattern: Solid Season: Fall Theme: Classic, Sophistication