Luggage is any number of bags, cases and containers which hold a traveller's articles during transit. Types of luggage include Suitcases, Duffel Bags, and Tote Bags. Today many types of luggage have wheels as an added convenience.
About Shoulder Bags:
Shoulder Bags are bags which include a strap that the wearer can sling over their shoulder in order to carry the bag.
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.