More glue - bah

[Matthew Amt]

If Iron was available, they would have used it, if bronze was, they would have used it too

Iron was certainly available, and yet helmets and (metallic) armor in the Greek Classical era were overwhelmingly bronze. Even the Romans were making helmets and armor (scale, e.g.) from copper alloys well into the 3rd century AD, though iron was quite common for those items. Chalk it up to fashion, I'd say!

if neither was available they would have come up with a solution, probably made using some glue (used the word now!)

*Probably* glue? Many cultures that had little metal simply did without armor, and many warriors in metal-rich cultures did, too. Many cultures made organic armor without glue. Why is glued linen the default, or such a strong assumption?

Would they have changed totally though?

Well, there are no Mycenaean depictions of tube-and-yoke cuirasses, nor of pteruges. There are illustrations of what look like short-sleeved tunics with lines of quilting. Helmets, shields, weapons, architecture, and many other things changed from Mycenaean times to the Late Archaic, so it's really no wonder that their organic armor did, too. It was a different society in many ways.

Oops, looks like others already said most of this!

Matthew