Mongol deel is a long gown with diagonal or square lapels that can be affixed on both sides. It is the main costume of the Mongol nations and it has lost neither its fundamental design nor style even after centuries of use. The ancientness of the design of the deel is suggested by the appearance of pre-historic people wearing sheep skin coats in ancient petroglyphs. The deel has developed to be compatible with the health, physiological characteristics, and daily life of the pastoral nomads of Mongolia. This garment is also uniquely suited to the harsh weather condition to which the Mongolian lifestyle has adapted. The accessories to the deel also serve many purposes: the long cuff at the end of the sleeves can be used as a glove or liner and the wide belt worn with the deel is designed for protection against kidney disease and back aches, while also serving as a blanket or pillow on long journeys.

The belt represents one's social status and wealth. There are a variety of belts found in Mongolia, including belts that are knitted and others that are made from cloth, leather, hide, and even silver and gold. Aristocrats of the nomadic pastoral peoples of the past would use belts made of various precious metals, on which delicate ornaments would be engraved and gemstones inlayed. This kind of belt was called an agsargan bits. It also had metal decorations from which the wearer would hang their sword, knife, and bow case. There was an ancient tradition that Mongolian men, when they established a friendship with another, would exchange their belts as a wish for continuous peace and unity with one another. It is said that aristocrats of the past would also engrave three, five, seven, or nine dragons on their gold or silver belts as a sign of reverence to this mythic beast.

Hat is a primary representation of one’s social status and is the most respected of the traditional clothing items. The toortsog, loovuuz, and four-lugged shovgor hats are a few of the more than 200 different kinds of hats used by the Mongolians in accordance with various customs. Hats are classified by the season as well as the wearer's age and gender. And hats are also classified by the shape and design of their top, such as the "skullcap,” "helmet,” and "flag.” Generally, the Mongolian hat has a pointed or domed top with red tassels, and a downward line of stitches resembling rays of the sun, which can vary in number and other features by ethnic group. The hat symbolizes eternal prosperity of Mongolia in the world. Various furs and skins are sometimes attached to different parts of Mongolian hats depending on their purpose and style.