where can i find backpack shops which is use for travelling?

I will be traveling in china, Tibet for about twenty days and on road hence luggage bag wasn't a good choice. and what should i look for in getting a backpack. What brand is good for Backpack too.

luggage shops usually have good heavy duty backpacks for traveling, and so do sports stores.

If you do a google search for "backpacks" you will find enough links to keep you looking for at least a week... that would make more sense to me than asking on here since no one on here has any idea WHERE YOU ARE LOCATED... so we can hardly tell you some local place where you can buy one.

luggage shops or sporting goods store depending where you live. Get a good frame pack with a rain fly. also make sure its not too large. They look great until you fill them and can't hardly lift them. Go lite, they get heaver as the day wares on.

How about camping stores or those Army-Navy stores?