What Is Backpacking?
Backpacking is a very loose definition – there are backpackers who go tramping in the forests sleeping in tents and on the beach, and hitch-hike their way around the world, and there are those who backpack with roller-bag suitcases, sleep in hotels and buy their own car to get around a country. These are two completely different types of traveling, but they both like to call themselves backpackers. You can however separate these into 3 different backpacking genres if you like:
Backpacking RTW Travel
Ultralight Backpacking
Flashpacking
The two later ones are newer styles in ways of backpacking.