This style has been around as long as surplus stores. It features a huge main compartment with a draw-string top and a zipper pouch flap that covers the main compartment. Two smaller side pockets and a front pouch store items you need to reach on a regular basis. It can hold tons of stuff and the heavy duty canvas material can take a real beating. The dimensions are 20" x 13" x 7 amd 1/2"