Tops are an item of apparel that refers to all garments that are worn to cover the torso. Tops may, or may not include sleeves to cover the arms.
About Trench Coats:
Trench Coats are typically knee-length military style Rain Coats that generally feature a belt around the waist, straps on the shoulders, wide overlaps in the front and two parallel columns of buttons. Trench Coats are usually made from heavy cotton or poplin fabrics.