SAE has just posted a notice on the official Formula SAE web site from Michael Royce about roll bar padding and head restraints.
The old foam roll bar padding is out! Everyone needs the SFI or FIA specification stuff.
One source of SFI padding that fits 1 inch OD tubing is BSCI in Mooresville, NC. I understand that they are willing to give FSAE teams a special price. The contact at BSCI is:
Matt Ray
sales@rollbarpadding.com
or via fax to:
Fax: 704-660-1540
He may be a little busy over the next few days getting the NASCAR teams supplied for Daytona.
BSCI also sells sheet foam to SFI 45.2 spec which is designed for head restraints.
Their web site is:
http://www.rollbarpadding.com/home.html