The size indicated (1, 2, 3, 4) is "3". I think it's probably a size M. I've used it a few times. There are no noticeable stains. Please refrain from purchasing if you are sensitive to used items. The size is as follows, based on my amateur measurements: Waist: 72cm (laid flat. Adjustable with ribbon) Hips: Approximately 100cm Rise: Approximately 30cm Inseam: Approximately 62.5cm Thigh circumference: Approximately 64cm Leg opening: 32cm Color: Black Waist: 72cm Hips: 100cm Rise: 30cm Inseam: 62cm