As far as I know the ones from Chris Barnes (UK) are made in carbon and on request in aramid (aka kevlar). The latter would be a far superior material to use in this application - especially compared to fiberglass - due to it's abrasion resistance.
Personally I would go with that, and get the top layer in carbon to get the cool look as well.
Proud member of the HUSABERG ADVENTURE TEAM!
12 690 Enduro-R, 12 Husaberg FE570, 09 KTM XC-F/ 450 RFS hybrid, 07 KTM 450 SMR, 09 BMW F650GS twin/F800GS hybrid, 03+05 YZF-R6