a backpack is typically a bag with two straps it is usually made of nylon, canvas, or other lightweight material it typically has a zip or drawstring closure it often has extra pockets and compartments for carrying items it usually has a handle or loop for easy carrying it usually has adjustable straps for a comfortable fit
backpack which is a backpack is typically a bag with two straps backpack which has it is usually made of nylon, canvas, or other lightweight material backpack which has it typically has a zip or drawstring closure backpack which has it often has extra pockets and compartments for carrying items backpack which has it usually has a handle or loop for easy carrying backpack which has it usually has adjustable straps for a comfortable fit