Clothing material

[2][3] It can be assumed that the animal skins were used for clothing throughout the human history, although in the ways that are primitive when compared to the modern processing, the earliest known samples come from Ötzi the Iceman (late 4th millennium BC) with his goatskin clothes made from leather strips put together using sinews, bearskin hat, and shoes using the deerskin for the uppers and goatskin for the soles.

[1] The weaving is also very old: an impression in hardened clay found in the Czech Republic suggests availability of woven material in Paleolithic 25 000 years before present.

[1] It is generally believed that woven wool production began in the 11th millennium BC; it certainly had been used in the clothing of ancient Persians, Greeks, and Romans.

[1] Earliest indications of linen use come from Ancient Egypt, silk production originated in China (according to a legend, 5000 years ago).

[5] The insulation qualities of clothing materials are determined by the amount of "dead air" they can hold.