Mens L, ladies XL.
Chest 45", back 27".
Each vest is unique and one of a kind. They are not standard sizes. The stated sizes are generalization. Consider that some sweaters are tapered at the bottom and some aren’t. The chest size of the sweater should be 2-4" larger than the size of the person wearing it. The back measurement is from the base of the neck to the bottom of the sweater.
