This is a US military surplus Notebook Pouch in ACU Digital camouflage. They measure 12" long by 8" high, and are a flat pouch that mounts with either 4 MOLLE straps or hook-and-loop. There are also loop (velcro) panels on the front of the pouch for attaching other pouches, patches, etc. Inside is one large pouch with two smaller divided slots and a section of cordage.