Hanten is a kind of wafuku (Japanese traditional clothing) and winter clothing that has been worn by ordinary people since around the eighteenth century. It is described as "半天" or "半纏."
It's worn by both men and women and shaped like a haori (Japanese half-coat). Generally, its collar is made of black satin. There are many kinds of Hanten, such as one with wide sleeves, one with squared sleeves, one with tight-sleeves, one with wadding such as in a quilt, and one with a family crest.