Abstract: A detachable, durable mini purse/storage pocket is disclosed that provides a discreet and secure storage pouch for women to carry small items in their brassieres. The detachable storage pocket is designed for attaching outside of or inserting into the cup portion or cleavage area of a brassiere, and comprises a piece of material folded end-to-end to form a front panel and a back panel. The front panel and the back panel are secured together at their side edges to form a generally flat pocket having an open top. The detachable storage pocket further comprises a protective, flexible layer to block electronic ions or rays, and a perspiration liner to protect the storage pocket's contents from moisture, both secured within an interior of the storage pocket. Furthermore, the detachable storage pocket comprises an adjustable strap and/or a clip for securing the storage pocket on the exterior or interior of the brassiere.