Nomex FRC hard hat liner?

Anyone know of a source for a flame retardant Nomex hard hat liner? Like the insulated liners or caps for winter use?

It seems silly to need to wear Nomex coveralls and not protect one's head with more than an impact resistant plastic hard hat.

Dan

danw,
How about a Nomex hood sock like like racers wear or firefighters?
http://www.speedwaymotors.com/xq/aspx/parent_id.200/dept_id.209/qx/DisplayGroup.htm
http://www.thefirestore.com/store/category.cfm?cID=43
Just an Idea..
Bob O.

Dan,

We just had Salisbury come in last week. I think they had one. Not sure if it was Nomex or Indura.

All the coveralls weve looked at had a hood attached that would go over the hard hat.

Gary