The Lazy Shade's 3 sizes are designed to fit most SUV's, trucks, vans, and some full-sizes cars. The best way to find your fit is to measure your dash from inside the vehicle, the driver-side a-frame to the passenger-side a-frame post. Small will fit 55.25"-57.25", a medium will fit 57.5"-59.5", and a large will fit 59.75"-61.75".