This is a very useful and stylish sling bag. It measures 6 1/2" wide at the bottom, is 12" tall and has a 2 1/2" wide gusset. It is made out of dry oilskin with a waterproof canvas interior. It has an adjustable printed webbing strap that can attach to either side on the back. It has a front zipper pocket and a back slip pocket on the exterior. Inside there is a slip pocket and a zipper pocket as well.