Is Hinata’s Dark Purple Obi Better Or Her Lavender Jacket? An obi is a Japanese sash worn on the waist with traditional clothing. You can even wear a pair of light brown shorts or mid-length pants for your cosplay costume. Megan is most excited to see as many museums as adult power ranger costume she can. Diversity and representation have been at the center of a big discussion in Hollywood in recent years. The answer to this basically depends on your preference.