Spare tire cover with a drawstring?

Probably cheaper to make with elastic hems.
I don't know much about them as I don't use them. The one time I did it was nothing but a bugs/critters and dirt trap.
If you're not fussy about appearance, and just want to hide/protect the tire from the elements, you could try a big green trash bag with a drawstring.

Had many over the years on different RV's, only one we've owned has had an excellent fit.

But the last two tire covers on other RV's...

I put in grommets (1/2 inch I think) and used "bungee rope" to get good fit. Think I got supplies at big box store under $20.00 And used a bit of old inter-tube for reinforcing material that cover was made of; about a 4x4 square


https://www.amazon.com/Shock-Cord-inch-Polyester-Commercial/dp/B078NB6WBQ/ref=asc_df_B078NB6WBQ/?tag=hyprod-20&linkCode=df0&hvadid=241941596583&hvpos=1o1&hvnetw=g&hvrand=9616941298126695004&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9033337&hvtargid=pla-628786755512&psc=1


https://www.amazon.com/Harbor-Tools-30037-Grommet-Installation/dp/B001TY8JH2/ref=asc_df_B001TY8JH2/?tag=hyprod-20&linkCode=df0&hvadid=194883046452&hvpos=1o9&hvnetw=g&hvrand=6522665728332429495&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9033330&hvtargid=pla-315239383593&psc=1

I have one from Ft. Wilderness that has a bungee sewn in instead of elastic, and a little hook and loop at the bottom to secure it. Pretty easy on/off.

Delete

Dawstrings rot, just like elastic.