This backpack has two large frontal pockets that measure 10”x13”x3” and the lower pocket has elastic loops on the inside. The upper pocket comes with a zippered pouch on the outside. On the sides it features two pockets 19”x7”x4”. The pocket on the right comes with dividers and the pocket on the left comes with 4 standard size removable pouches as seen in the photo. Upon opening the large pocket of the bag you see three large utility pouches and one extra large utility pouch. On the bottom of the bag is a strap to hold a D tank Cylinder. This bag comes with molded feet on the bottom for extra protection and handles if the person decides to carry it.