Great photo, great ass. I too love football pants. But, OP, it may surprise you to learn that those are not football pants but instead are Rufskin jeans.
I don't believe that cut/style is for sale anymore (so no link), but I do recall seeing them for sale. Skintight Rufskins are likely only worn in WeHo by those who have the body and the ass for them -- or think that they do.