Inherently/Permanently Flame Resistant fabric - Incorporates a layer of Ballistic Kevlar for some protection against possible shrapnel - FR Suspenders included - Genereous fit to wear OVER your work clothing including large rise and generous seat to prevent binding up. Cinch strap at waist for adjustment. Wide pant leg to make it easier to don/doff the bib-overalls over even 13EE work boots. Cinch strap at bottom of pant leg for better fit around your boots.