Parthian dress is the style of clothing that people in the Parthian Empire used to wear a long, long time ago. Imagine wearing a costume for Halloween, but instead of it being one day a year, you wear it every single day.
People in the Parthian Empire used to wear big, flowing dresses or shirts that went down to their feet. These clothes were usually made out of really light and airy fabric, so they wouldn't feel too hot or bothersome. Think of it like wearing a really light and comfy pair of pajamas.
In addition to the long dresses or shirts, people in the Parthian Empire also wore a long scarf around their necks called a mantel. The mantel was like a big hug for their necks and upper body, and it also helped them stay warm on windy and chilly days.
Lastly, the people in the Parthian Empire wore really cool headdresses. These were special hats or crowns that they wore on their heads to show off their importance and status in society. Some hats had feathers in them or were really colorful to catch people's attention.
So, Parthian dress is all about wearing long and flowy clothes made out of light and comfortable fabric, a warm and cozy scarf, and a really fancy and cool hat or crown on your head.