Even though luggage as a concept is not new, the word is less so. Luggage comes from a 1569 word dragging about: lug. Perhaps Johnson said it best when he called luggage "any thing of more bulk than value." As it may be, buying luggage is something which we all must do when planning for a trip. Once you have bought this luggage, you may find that it had became damaged over time. Rather than to throw it out, look for replacement parts and use that luggage for a few more trips.
Luggage stores can be a source for luggage replacement parts. Companies like Samsonite have Samsonite luggage repair parts for their luggage. You may find, however, that the parts available are for newer luggage. If you have older luggage, you may not find the parts which you need.
Specialised luggage stores
Specialised luggage stores may be a better place for finding replacement luggage parts. These companies may have a wider catalogue which encompasses a wider range of luggage--from new to old. There are also companies like Cox the Saddler which manufacture leather luggage straps and leather handbag handles which will replace broken pieces of your luggage. Online companies like the Luggage Repair Parts carry parts for luggage with categories broken down by brand. There, you should be able to find the parts which you need. If not, luggage repair stores might be able to help and at the very least, they may be able to make custom parts for you.
Used luggage parts
If the above options do not work, then finding used parts may be the only option. The used parts are available at flea markets, tag sales, rummage sales or even charity or goodwill stores. You may find luggage which match your own, from which you can take to fix your own, like a mechanic who keeps a used car only for its parts. If you are handy, you may find yourself sewing bag shoulder straps, leather handbag straps, and tears. You may even be able to fabricate your own replacement parts by altering parts from used luggage to fit your own. While perhaps taking longer to find, used luggage parts might work best for you, especially if your luggage is old.