Ireland
Not much is known about Irish traditional dress but we do know that they wore mainly wool and animal skin. The cloaks they wore were called mantles. They were often made of many scraps of wool sewn together.
Brats were another type of cloak worn. The wealthy wore these cloaks as they were made of different colours of wool and signified wealth. These cloaks signified so much that in Brehon Law it was said that slaves were not allowed to wear cloaks with more than one colour in them.
http://www.buzzle.com/articles/traditional-irish-clothing.html
The léine was worn under the brat. It was a long tunic that went to their knees and was wide in the bottom and got narrow at the top.
The ionar was a pleated jacket worn over the brat, historical sources show that the ionar was very intricately decorated with embroidery.
http://www.buzzle.com/articles/traditional-irish-clothing.html
Women wore léine like the men but as time went on they began wearing long dresses decorated with ribbons. The léine was traditionally yellow as the colour of Ireland was yellow. The Irish used yellow as it was a representation of the sun, the Irish then believed that the sun was a symbol of life.
http://www.potomacleather.com/Lassies-Irish.htm
Traditional Irish clothing is very similar to traditional Scottish clothing. Animal skin and wool had to be worn as it would get very cold in winter. As you can see from the different types if clothing worn, the Irish layered many garments to keep warm. Their clothes also gave a clear representation of their wealth.
Bye :)
Sources: wikipedia.org/wiki/Irish_clothing
http://www.mcginleyclan.org/nativeclothing.htm
Sarafan
Russian traditional dress is very modest and are made in a way that makes movement easy for working. The different types of dresses for women and children, called 'sarafan' differ only slightly in decoration. They are often red dresses that touch the ground or hit around the ankle, they have long sleeves.They are made of wool and are embroidered using painted threads. Russian women also wore 'kokoshnik' a head dress.
In the northern areas of Russia the embroidery was very modest and refined, this was in keeping with the architecture there and in the south the embroidery was brightly coloured. This shows how geography effected the style of dress worn by Russian women.
Ushanka
Another common garment worn by Russians in the past is an ushanka. It is a very well known garment world wide. An ushanka is a cape with fur trim, it has earflaps and a leather head covering that is padded. These features of the ushanka protected Russians from the very harsh winters. For example the leather head covering was padded so that if you were to fall on the ice the padding would protect your head. The ear flaps kept them warm as did the fur lining of the cape.

Ushanka Hat Picture owned by Eugene Zelenko
Sources: http://www.rusclothing.com/traditional-russian/
http://en.wikipedia.org/wiki/Ushanka