Rucksacks, also known as backpacks, knapsack, packsack, pack, or Bergen are a very popular lightweight way to carry travel items when simply travelling or taking part in various outdoor activities.
There are many different styles of rucksack available. Each rucksack is designed for the specific carrying role they will play. Some are small and compact for day use, others allow you to carry all your travel requirements in one handy pack. Many have small detachable racksacks for day use which attach to the larger main travel rucksack ideal when backpacking across the globe.
Some rucksacks also have lightweight wheels for use in airports, hotel lobbys etc and others can incorporate rehydration compartments for fluids. They truly are diverse.