Chissaro

A chissaro [芻帯; ちっさろ] is a traditional Kantonese garment, best described as a raincoat made from straw. Traditional chissaro only cover the back and arms of the wearer, although versions which shield both one's front and back do exist. 
Most varieties of straw have water repellent properties. Raindrops striking a mat of straw will tend to flow along the fibers of the mat, rather than penetrate underneath it. For this reason, traditional Kantonese rain gear was often made of straw, which has the added benefits of being cheap to acquire, easy to weave and fasten, and light in weight. It is, however, bulky in size, and highly flammable. In earlier eras, straw clothing had an additional advantage: it afforded a significant degree of camouflage in certain terrain, particularly forests, meadows and wetlands, similar to modern ghillie suits.
As synthetic fibers and later plastics were introduced to Kanton, chissaro lost much of their practicality and fell out of use. Today, however, they are still worn as costumes in various traditional folk traditions and festivals, such as the New Year celebration Nonori-Kōki, where men dress as the demonic beings nonori wearing masks and straw mantles.