Wrist warmers made of thick, smelly ol' coarse wool, just like everything should be made of. Old Swedish manufacture from times long gone.
Just like a bridge between the sweater sleeve and the glove. Being military issue, these are made to last and easy to repair. Being very likely made of 100 % wool these certainly are an eco friendly choice and they will disintegrate with time if you lose them in the woods!
May even be WW2 era manufacture. All looked unissued, but don't bring out the pitchforks and torches if you get used ones. Also, please try not to mind the musty warehouse smell which only gets worse if these get wet! It might wear off with time.
Albert B.
Alexander V.
Jeff D.