This briefcase is manufactured from 12 oz. cotton canvas. This bag features a top zipper closure great for keeping your items safe and secure. The bag includes a front zippered pocket and a front flap with another zippered pocket. The flap covers two slip pockets and fastens in place with Velcro. In addition there is a zippered pocket on the back of the bag and a slip pocket inside the bag. The shoulder length carrying strap is adjustable, providing just the right length.