Also known as: スリット(洋服), スリット, 开衩, 侧开衩
A cutout slit along the side of the legs in a Dress or Skirt.
Most China Dresses come with long side slits. Pencil Skirts often have short slits.
If a dress or skirt has high slits on both sides, it may form a Pelvic Curtain. If the slit starts at the top of the skirt and doesn't go all the way down to the bottom, use Hip Vent instead.