What size tire cover?

[malibuconlee]

Not a Disney World camping question, but one about my 5th wheel.

Wanting to get my husband a new tire cover (the factory one blew off somewhere!) with his university logo on it. The tire says it is an ST235/80R16, but when I look at sites to order they have different sizes by letter designation.

Anyone know what size I should order?

http://www.amazon.com/NCAA-State-Cyclones-Cover-White/dp/B004HX1LO0

https://www.tirecovers.com/product.php?SKU=TCIowaStBK

http://fangear.epicsports.com/prod/71846/holland-ncaa-iowa-state-university-tire-cover.html

Here are some I was looking at so you can see the sizing.

Thanks in advance!

 

[Bearikens]

The second and third sites you posted has a sizing chart
https://www.tirecovers.com/size.php?PTID=1

The size you want (as per the chart) is D10

 

[malibuconlee]

Oh my, thanks. It's just been one of those days!