A system comprising a computer-readable storage medium storing at least one program and a computer-implemented method for simulating the fit of a particular garment on a user using a fit simulation garment. The fit simulation garment is wearable by a user and comprises a plurality of actuators configured to simulate tightness of regions of the particular garment. The method includes receiving a garment fit model defining the fit of the particular garment on the user. The method further includes parsing the garment fit model to generate control data for controlling the fit simulation garment, and transmitting the control data to the fit simulation garment to cause the plurality of actuators to collectively simulate the fit of the particular garment on the user.