a really nice vest with jeans the perfect fit, whether worn with longsleeve, Ribshirt or shirt. For a suit I would not wear this, however, because there are indeed more appropriate and finely crafted models.
For size, I had to get this vest in XXL XL since around the belly was too tight .... is not because of me but on average. In an XL vest - Obenrum XL but in the belly / Talienbereich L ....