Chador-Shab is a beautiful and colorful fabric that is woven in Gilan, Mazandaran, and Khorasan provinces. Local women wrap it around their waists. You can find it in Gilan province, in Rudsar and Qasemabad regions, more than other places. The fabric that is called Chador-Shab in many villages of Iran is usually woven in the size of two by two square meters and is used to wrap mattresses, coverlet, clothes, and other things is different from the fabric used in East Gilan.

Chador-Shab is almost similar in terms of design and color in different regions of Iran, but it has more artistic value due to some unique designs and colors in Qasemabad, Gilan. This weave is the oldest handicraft of the people of Qasemabad, Gilan, which has historical roots in their culture and customs.

The main use of this fabric in the local women's clothing of Qasemabadi is to wrap around the waist. Women wear Chador-Shab around the waist at working and farming, such as picking green tea leaves or picking citrus fruits to prevent back pain, to strengthen the legs, and to avoid putting pressure on the back. In some cases, it is also used to tie the child to the back while working. In the local language, Chador-Shab is called Charshoo, and in some areas near Qasemabad, it is called Kamardabd. Due to its beautiful and simple design and color, this weave has found many other uses in rural life.

Blankets, curtains, and tablecloths are some of these uses. Recently, it has been used for lampshade caps, desktops, laptops, TVs, shelves, and even men's shirts. Most Ghasemabadi girls weave a monochrome or patterned silk Chador-Shab. They take it to the groom's house as their dowry. There is another type of Chador-Shab that is wrapped around the waist as a traditional dress in weddings. The production of Chador-Shab and all kinds of knitwear mostly occurs in winter and leisure time, when women are free from working on fields, only by hardworking and intelligent women.