A backpack can be an excellent personal item because it keeps travel essentials accessible and leaves both hands free, but the words “backpack” and “personal item” are not interchangeable. Airlines set their own size and fare rules, and a backpack that works under one seat may be too large for another carrier or aircraft.Quick AnswerA backpack can count as a personal item when its...

Work backpack capacity is often described in liters, but the number only tells part of the story. A 20L bag with a rectangular laptop-friendly layout can hold more useful office gear than a 25L bag with rounded pockets and heavy internal dividers. The best work-backpack size is the smallest capacity that fits the laptop and recurring workday essentials without forcing the zippers or encouraging...

A long commute changes what matters in a backpack. A bag that feels fine for a five-minute walk can become uncomfortable after forty minutes of walking, several train transfers or a bike ride. For long commutes, loaded comfort, weather protection, laptop stability and secure organization matter more than maximum capacity or decorative features.Quick AnswerChoose a long-commute backpack with broad comfortable straps, a supportive back...