This is a fire reststant long sleeve shirt from LAPCO a major protective clothing manufacturer. I do not have expertise in this area and make absolutely no claims as to the viability or attributes of this garment. I will provide accurate as possible size measurements. But as to the flame resistance qualities of the garment, I refer you to the garment care tags and labels provided by the manufacturer. I did not research the likely industry applications for it and will once again defer to your judgement. This was purchase from a retired gentleman who told me he bought it because he liked the striped design. I call it "railroad stripe" just because of my experiences. It does not imply that it is used by the railroad. It is only a style. Sorry for all the verbiage. I am just trying to protect people from potential harm. Now back to the shirt: it's heavy cotton fabric like denim sailcloth. Weighs 1lb 4oz. So it could probably be worn like a denim jacket. Measures:collar:17"; shldr:19"; slv:25"; chst:25" across; lngth:frnt:30"; bk:33". Hi-lo. Button down flap pockets, button down collar. I don't see this stripe on the company site. No idea about vintage or not or compliance with current safety stds. New it would sell in the $89 range. It is in excellent condition with only a sweat ring on collar that I got out with a baking soda and vinegar paste.