Dress Boots are any styling of boot that is appropriate for wear in more formal occasions. Dress Boots usually have more eye-catching designs and colors, and they may have decorative ornamentation.
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.