The arithmetic to calculate diameter of your tire:
For example, your tire is written with P215/60R16, A=215 B=60 C=16.
Your tire diameter =A*B/500+C*2.54 =215*60/500+16*2.54 =66.44cm
SIZE XS(13inch/22"-23") FIT FOR: diameter 58cm
SIZE S(14inch/23"-27") FIT FOR: diameter 60-69cm
SIZE M (15inch/27"-29") FIT FOR: diameter 70~75cm
SIZE L (16inch/30"-31") FIT FOR: diameter 76~79cm
SIZE XL (17inch/32"-33") FIT FOR: diameter 80~83cm
SIZE XXL (18inch/34"-35") FIT FOR: diameter 84~89cm
Elasticized Back Hem With Quick-Connect Clips Design,Slip-on Style Tire Cover It's Very Easy To Install And Remove, No Any Tool Required.
Waterproof and Non-Scratch, Helps Protect Your Spare Wheel & Guard Against Sun, Rain, Mud, And Other Elements
High Quality UV Resistant vinyl leather NO INK and NO Stickers which means No peeling Print.
The tire covers made of a cotton / polyester blend material, durable heavy-duty faux leather, thick is 0.7mm.Paw Print Will Give Your Car Improves Appearance
NOTE:CHECK TIRE COVER CHART TO MAKE SURE TO ORDER CORRECT SIZE