Carhartt flame-resistant bibs come in a variety of styles, both lined and unlined, so you can stay protected all year long. All Carhartt flame-resistant bibs and coveralls meet NFPA-70E, ASTM and OSHA standards.
Reviewer: WhiteOne, Location: London England, Occupation: Electrical Engineer (Waste Water) Carhartt FRR43 flame resistant lined bib overall I have found the FRR43 bib overallis to be very comfortable and warm for winter use (of course the British weather is nothing like in North America!), good features are the legs have a stud fastener at the bottom so the zips do not keep coming undone (as they do on my other R02 and R03 pairs), also the material is much softer than these so more comfortable but so far seems just as tough (hopefully I will never need to test the flame resistance of these overalls), and the pockets on the bib are much larger so you can get a phone etc. in which you can't do with the other Carhartt bibs I own . What is not so good - waist size is much bigger than the size chart would suggest, even wearing over other clothes it is about 2" too big and this is after washing a few times, zip on the fly has stuck a couple of times aswell.