LL Bean has a warm union suit. It's thick and might have a slight wool blend to it. The colors were red, white & gray. I got the gray ones and luckily all my winter socks are also gray. It's the warmest pair I've ever found and when paired with the Garhartt lined work pants it can't be beat.ecelectric said:Approved under layers are 100% cotton or wool
That's what I wear and I don't regret the 250$ price tag at all!! Just don't put them in the dryer.Great stuff but it's expensive:
Undergarments don't have to be FR but they can't be synthetic materials. Cotton and wool don't support flame.I honestly don't recall nor remember that under garments also had to be fire rated!
Since post #8, what about Nortic Track, it's really no different than this post.
I know it's not all cotton and not fire rated.
I use NT, and no matter what else I have to wear I don't feel like the Michelin Man when out amongst them...
BTW, I don't work anything hot!
Actually, I lied. Cotton does support flame. The problem with synthetics is they melt and that can be worse than cotton. Go with the merino. It appear that it doesn't support flame very well.Undergarments don't have to be FR but they can't be synthetic materials. Cotton and wool don't support flame.