Abstract: A work belt with lumbar support, stretchable side panels and interchangeable pouches comprising a main belt structure having a buckle at one end and holes at the other end for removable coupling with respect to the buckle and with a central section of an increased height, a lumbar support extending laterally within the central section and fabricated of an elastomeric material, elastic panels secured to the belt at locations laterally spaced from the lumbar support, pouch support straps located on the belt laterally disposed on opposite sides of the lumbar support for receiving any one of a plurality of interchangeable pockets, suspender straps permanently secured to a central extent of the belt structure with opposite ends releasably secured to the upper edges of the belt near the buckle and holes, and a plurality of interchangeable pockets adapted to be secured to the support straps.