Slice-proof adjustable 26?-41? waist strap with a pair of steel cables, velcro buckle security wrapper, and zipper security leash in the back seam to secure the outside zippers. Identity protecting rfid blocking pocket. Large front zipper pocket with oversized lining for bulky objects (even a .5L water bottle) with a double ended leash for keys and optional DayMaker wallet. Inside is a super-sized, pleated rfid blocking zipper pocket that is as tall and wide as the bag. Being organized is a key to being safe - the less you are searching the more you are aware of your surroundings. Dimensions: 6" x 10.75" x 4.5" , Weight: 13 oz. Material: Ballistic polyester , Easy care wipe clean textile. (Machine washing will disable rfid protection.) OK to use fabric protectant. Material: Nylon twill, polyester lining , Easy care wipe clean textile. (Machine washing will disable rfid protection.) OK to use fabric protectant.