Levi’s Shrink-to-Fit 501 model is an interesting idea. For those of you who are up on their raw denim knowledge then you’ll understand this more than those who are not. Typically, you should size up because, yup, you guessed it, they are going to shrink. Initially you ARE supposed to let them soak in scolding hot water, usually in a bathtub, and then after a hour or so soak — hang dry. After the pants have stopped dripping, put them on and wear them until they dry. This is the proper method to allow the denim to match your body type and give you a great fit.