ECBC's most affordable messenger, Poseidon brings it all together. Protect your 13" laptop and a tablet. The front flap is self sealing with extra secure Velcro in case you dont clip it shut. This bag keeps your gear safe from the elements with water resistant material and water sealing, self repairing zippers. Quick Access front pocket keeps the things you need most close at hand. Adjustable strap has a hide away pocket to keep the excess tucked away neatly.