What does everyone recommend for a behind the neck set of electronic muffs?

I don't want Peltor's 6's and currently own Peltor 7's. All the Sordins seem to have a top head band which will not work with my hat for sun protection (Tilley). The Peltor 7's work pretty well with a baseball cap and will work in the house if I'm ever in my "PJ's" and find I need hearing protection (or want to listen to the bad guy breathe and creep down the "fatal funnel").