Waist size 27.XS waist 23-27, S waist 27-31, M waist 31-35, Lg waist 35-39. XL 39-43. 2XL 43-47. Pants are made with comfortable, durable poly/cotton twill with reinforced seats & knees. Vintage Pants include an adjustable waist tabs, button fly and drawstring bottoms.