Most travelers use packs that are easy targets for thieves and pickpockets. Traditional backpacks aren’t designed to protect you against the dangers of traveling. Instead, they’re made for camping and hiking where security isn't an issue. No bag can be 100% theft-proof. It's just not possible. You'll want to look for a lockable bag that will deter casual theft. If your bag is locked and the next person's isn't, a potential thief will just skip yours. Your goal should be to not be the easiest mark. A few simple safety measures will go a long way towards keeping your stuff safe. Using a theft-proof backpack designed for travel is the safest choice.
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