I am selling a copy of this round Viking helmet in original size.
For heavy reenactors' battle this is one of the sturdiest Viking combat helmet our supplier has made so far. It is made from 13 gauge steel (2.3 mms or .09 inch thick).
It fits even "big heads" quite well (hat size 7.3/4) (63 cms.), it has a leather chin strap and an adjustable leather lining inside and there is still room for some extra padding.
It weighs abt.2.5 kgs.( 5.5 lbs.).