Slice-proof adjustable 29?- 49? strap with a pair of steel cables. Zipper security leash extends from the main compartment to secure the outside zippers. A pair of pull tabs on the top zipper for convenient access. Supersize front zipper pocket with oversized lining for bulky objects with a double ended leash for keys and optional DayMaker wallet. The large outer open pocket has a smart phone drop-in pocket. An open pocket on each end for umbrella, sunglasses or .5L water bottle (water bottle will fit if the side of the bag has room to expand inward). Inside is a super-sized, pleated zipper pocket that is as tall and wide as the bag and four handy pleated drop in pockets, 2 large and 2 small. Being organized is a key to being safe - the less you are searching the more you are aware of your surroundings. Dimensions: 8.25" x 12.5" x 3.5" , Weight: 17.5 oz. Material: Top grain cowhide, polyester lining - Any leather cleaner followed with conditioner is safe to use.