Abstract: A wheeled utility bag that includes a customizable storage area for conveniently transporting a number of items and extendable axles for increased stability. The utility bag includes a rigid base incorporating an extendable handle, a fixed handle, extendable axles supporting at least one rotatable wheel and a container such as a flexible bag. A supply kit can be removably mounted to a first side of the rigid base while the flexible bag is permanently attached to a second side of the base. The flexible bag forms a main compartment area for transporting tools or implements. A customized insert can be included in the main compartment. The utility bag also including a number of secondary compartments, retainers, handles, attachments and pockets.