Because the conditions there are so hot also their people tend to were bright colors to prevent further extortion of the heat over time it has become tradition to where such clothing
Loose arab garments
clothing that was worn was very mature and productive. Nothing big but never wore any bright colors
There is none now, and even last century, it was different across regions. France hasn't had school uniforms since around WWII, that's probably what started (thanksfully) to kill the traditional clothing.
They wore an apron, tunic, worn out pants, and some kind of long sleeve shirt.
Sudan (North and Central) follows strict Muslim law, men wear conservative, but loose fitting clothing or even "western" type clothing. Women wear a mixture of clothing types, but conservatively - that is that shoulders and wrists have to be covered, as does the hair and full length skirts have to be worn. Women are not allowed to wear trousers.
It is ideal for the hot climate.
Flowing or loose clothing (especially sleeves of a top/dress) could knock over chemicals and/or catch fire.
dashiki
a haik
Dashiki
haik
Clothing must be comfortable and loose- to ensure that the mother can remove it with ease when breast feeding and getting changed.
Geneva gown
The traditional garb widely worn in Sudan is the jalabiya, which is a loose-fitting, long-sleeved, collarless ankle-length garment also common to Egypt.
It allows sweat to evaporate faster and more efficiently, cooling you down.
A long loose black garment worn by academics is typically called a robe or academic gown. It is often worn during formal academic ceremonies such as graduations, convocations, and other ceremonial events.
An angarkha is another name for a kurta, a traditional item of clothing worn in Afghanistan, Bangladesh, India, Pakistan and Sri Lanka, a loose, knee-length skirt worn by men and women.