Conversation so far:
What can you tell me about Gaelic Ireland dress in the Middle Ages?
The common clothing amongst the Gaelic Irish consisted of a woollen semi circular cloak worn over a loose-fitting, long-sleeved tunic made of linen.
Did Gaelic Irish wear any other distincti clothing besides their cloaks?
For men the léine reached to their ankles but was hitched up by means of a woven belt. The léine was hitched up to knee level.
Did Gealic Irish have any other distinction in their clothing besides their tunics?
The cloak was simply thrown over both shoulders or sometimes over only one.
Was there any other distinction for Gaelic Irish women in dress compared to men?
Women wore the léine at full length, rather than knee length for men.
Did Gaelic Irish wear their hair up or down?
Women invariably grew their hair long and, as in other European cultures, this custom was also common among the men.
What other things did Gaelic Irish wear besides cloacks and tunics?
A short, tight-fitting jacket became popular later on and the Irish commonly wore hoods at that time
What is a léine in regards to Gaelic Ireland?
A léine is a loose-fitting, long-sleeved tunic made of linen.
Is there any other significant fact about the article or this time period of Gaelic Irish society besides dress and clothing?
Throughout this period, the economy was mainly pastoral and money was generally not used.

Question: Why did they focus on hair so much?
Self-contained rewrite: Why did Gaelic Irish focus on hair so much?