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 Zipper:
A zipper, sometimes called a 'slide fastener' is a device consisting of two toothed tracks or spiral metal or plastic coils, each bordering one of two edges to be joined, and a piece that either interlocks or separates them when pulled.
