A backpack is a type of bag that is carried on one’s back. There are many types of backpacks: rucksack, knapsack, packsack, pack, etc. A rucksack and a knapsack are essentially types of backpacks....

The main difference between the two is that hiking is mainly a leisure activity which is done by walking on well-made trails and man-made roads. However, trekking is more rigorous, and a more challenging...