I'm looking for White composite decking... Anyone?

Header says it all. I want to build a perimeter bench (no back) on a deck and use white for the seating, and a natural color for the actual deck. I've seen grey-colored composite, but haven't (yet) found a white decking board. I suppose I could use Azek (or something similar), but I don't know if its stiff enough even with 12" framing centers. Anyone have some ideas or maybe you've seen something in white that is dimensioned per standard decking?

TIA!!!

Mike