Abstract: An integrated custom underwater diving system including backpack, weight system, bouyancy compensator, and equipment bag. The backpack has adjustable shoulder supports for conforming to the shape of the shoulders and torso of a diver and an integral weight system having a quick-release mechanism. The equipment bag has a plurality of compartments for storing and safely transporting diving equipment, the back and ends of which are provided with a semi-rigid sheath for protecting the contents of the bag during shipping, and compartments along the sides thereof for receiving diving fins which provide protection along the sides of the bag during shipment. The backpack is designed for removably mounting on the front of the equipment bag such that the backpack provides protection to the front of the bag during shipping and handling. The equipment bag is also provided with straps which allow the bag to be carried on the backpack to and from dive sites.