Most travelers carrying backpacks are easy targets for thieves and pickpockets. Why? Most backpacks aren't very secure. They close with a drawstring that's very easy to loosen, exposing your bag to thieves. When traveling, you need a bag that can prevent theft, not encourage it. Using a secure backpack will minimize your risk of theft and keep your valuables safe.
http://www.tortugabackpacks.com/pages/secure-backpack













