WH cover is MONEY. By far best cover I have ever had, including expensive muscle car covers. We had 3" of rain the other day. I popped cover off hood and it was bone dry! The front was cupped a little and when I pulled it about a gallon of water that was trapped poured on my foot. It breathes, unlike a tarp.. Do not tarp your truck. It will trap moisture and rust it out...
With my spare tire on back fit is very tight, and a strong wind, I mean gust of 40, took it off. It does come with a strap to tie under vehicle, which was not on when it fell off.
No brainer...