Cramer Tuf-Tek Backpack for Athletic Trainers Semi-rigid shell is encased in a combination of our new super durable and stylish Tuf-Tek material and our 1680 ballistic nylon Rigid supports in the main walls of the bag make this the most protective soft-sided kit in the Cramer line. It also helps the kit keep its shape and keep it looking new Rounded corner design gives a large, more aerodynamic and sleek look, contains a large cell phone pocket for todays large cellular devices Single pull zipper design allows for a gradual turn around corners which increases zipper life and eases access into the bag Measures 15" X 14" X 8.5"