Breastplate for comments

[Victrix]

Just some additional interesting pics I found on the subject.

Seems most pikemen’s breast plates were not shot proof marked. Presumably they were mainly for protection from enemy pikes and therefore perhaps need not be as thick as other breast plates. 4kg does not sound excessive for a pikeman’s breastplate. I have a shot proof marked Swedish 1680s cavalry breast plate that weighs about double that.