Welcome to Russia.

Perhaps the most popular contribution of traditional Russian costume is the kokoshnik, a festive hairstyle from northern Russia, from which hats and jewelers are inspired. 

The kokoshnik is worn with the sarafane which is a straight, sleeveless Russian dress. 

This garment was worn by girls and women from villages in northern and central Russia, as well as in the Volga regions, until the beginning of the XNUMXth century. 

Source: Wikipedia & Hypotheses.org