What is a "rucksack"?

A rucksack, also known as a backpack or knapsack, is a type of bag that is worn on the back with two straps over the shoulders, allowing for hands-free carrying. It typically has a large main compartment for storage, along with one or more additional pockets for organizing smaller items. Rucksacks are commonly used for hiking, camping, traveling, and other outdoor activities, as they are designed to distribute the weight of the load evenly across the back and shoulders, making them more comfortable to carry for extended periods of time. They are also popular for everyday use as a practical and stylish alternative to traditional handbags or briefcases.