The bag is 12 L x 11.5 W x 5 inches deep. Has an adjustable padded nylon strap. The messenger bag comes with an outside cell phone holder, 2 zippered pockets, one under the flap and one on the back. The inside of the bag is fabric lined, with two pockets, and a number of pen and pencil sleeves. The outside is made from heavy water resistant 600D nylon. The 12 L X 11.5 W inches flap is made from a heavy weight canvas with a polyester front. Om is thought to bridge the gap between the known world and the unknown creator of everything we perceive. One of the most popular interpretations is that the three sounds that make up Om represent the three stages that all humans go through. These are the waking state, the dream state and the deep sleep state, thus embracing all that we experience in life.