I think just a nylon top and a nylon mask is boring. I think you agree with me completely.
So I just complete my encasement with a black pantyhose for my legs.
Since this is not enough, I add another with pair of pantyhose with an open crotch.
Now you can have a very close look of my nylon clad pussy on http://www.clips4sale.com/studio/40448

Kisses to all
Iarina

Your initial plan of encasement is not boring @ all. Layered, single layer...it really doesn't matter to me