A backpack is a type of bag designed to be carried on one’s back, typically supported by two shoulder straps. It’s used to carry personal items, books, clothes, and more.

There are various types of backpacks, including daypacks for everyday use, hiking backpacks for outdoor adventures, school backpacks for students, travel backpacks, and specialized packs like hydration packs or camera bags.

Consider your intended use and pack size needs. Smaller daypacks are great for commuting, while larger ones are suitable for traveling or hiking. Check the liter capacity to gauge size.

Look for padded shoulder straps, a padded back panel, and adjustable straps to distribute weight evenly. A hip belt can also help with support on longer hikes.

Most backpacks can be cleaned with mild soap and water. Follow the manufacturer’s instructions, and avoid machine washing if not recommended.

Yes, some backpacks are designed to be waterproof or water-resistant. Look for backpacks made from waterproof materials or those with rain covers.

Use compartments, pockets, and organizers to separate items. Pack heavier items closer to your back and lighter items towards the outside.

Many backpacks are suitable as carry-on luggage, but it depends on the airline’s size and weight restrictions. Check the airline’s guidelines before traveling.