2 tire lines. 355/25R21 tires sized to your wheels and your car.
About 355/25R21 tires
355/25R21 means a 355 mm section width, a sidewall 25 percent of that (89 mm) and a 21 inch rim, which works out to 28 inches tall. Whether 355/25R21 works comes down to the wheel width it mounts on and how far it lands from the height the car left the factory with.
2 lines carry 355/25R21, from 2 brands (Michelin and Pirelli). By type that is 2 performance summer. The tire has to stay near your car's stock height and mount on your wheel width, so pick the car and the wheel set and the page keeps only the 355/25R21 lines that do both.
Common questions
What does 355/25R21 mean?
355 is the section width in millimeters, 25 is the sidewall height as a percent of that width (89 mm here), R means radial and 21 is the wheel diameter in inches. Overall the tire stands 28 inches tall.
Will 355/25R21 fit your car?
Pick your year, make and model and the tires page answers it for yours. The wheel width has to carry the section width and the overall height has to stay near where the car started.
What wheel width fits 355/25R21?
The tire makers list 12 to 14 inch rim widths across the 355 mm sizes we carry, and each product page shows the range for that line. Pick a 21 inch wheel set and the tire step checks the width for you.