To find the best fit, measure the diameter of your tire and the width of the tread. Then, compare your measurements with the measurements in the sizing chart below. If you have questions or need further assistance, please call our office at 1-800-699-5337. For accurate sizing, read the tire size directly from the tire - do NOT rely on the vehicle type, since tire sizes may vary. Choose your tire cover size with the help of this Tire Size Chart. No Return on tire covers. Please choose the correct tire size. Tire Sizing Chart Alabama University Arkansas University Tire Covers Auburn University Boise State University Central Florida University Cincinnati University Colorado State University Connecticut University Florida University Florida State University Georgia Tech Georgia University Houston University Illinois University Indiana University Iowa University Iowa State University Kansas State University Kansas University Kentucky University Louisiana State University Louisville University Marshall University Maryland University Memphis University Miami of Florida University Michigan State University Michigan University Minnesota University Mississippi State University Mississippi University Missouri University Naval Academy Nebraska University North Carolina State University North Carolina University Northwestern University Notre Dame Ohio State University Ohio University Oklahoma State University Oklahoma University Oregon State University Oregon University Penn State University Purdue University South Carolina University South Dakota State University South Florida University South Mississippi University Tennessee University Texas A M University Texas Tech University Toledo University Virginia Tech University Virginia University Wake Forest University Washington State Washington University West Virginia University Western Michigan University Wisconsin University If you have questions you can reach us toll free at 1-800-699-5337.