A slide fastener comprising: a first fastener stringer in which a first fastener element is arranged at a side-edge portion of a first fastener tape; a second fastener stringer in which a second fastener element is arranged at a side-edge portion of a second fastener tape; a slider including a slider body and a pull tab attached to the slider body, the slider body movable forward to engage the first and second fastener elements (21,22) and movable rearward to disengage the first and second fastener elements (21,22) in accordance with operation of the pull tab; a first stop member positioned adjacently to the first fastener element in the first fastener stringer, the first stop member including a first insert inserted inside the slider body via a rear mouth of the slider and a first base arranged rearward of the first insert; and a second stop member positioned adjacently to the second fastener element in the second fastener stringer, the second stop member including a second insert inserted inside the slider body via a slit communicating between a front mouth and the rear mouth of the slider and a second base arranged rearward of the second insert, wherein the pull tab includes a pull tab main portion operated so as to move the slider body forward or rearward, characterized in that the first base is sandwiched between the second base and the pull tab main portion to form a stack in which the second base, the first base and the pull tab main portion are stacked in this order, the pull tab main portion and the first base are configured such that the pull tab main portion moves rearward to cause rearward movement of the slider body as the stack is sandwiched by human fingers in its stack direction while the first insert has been not fully inserted inside the slider body. a first fastener stringer in which a first fastener element is arranged at a side-edge portion of a first fastener tape; a second fastener stringer in which a second fastener element is arranged at a side-edge portion of a second fastener tape; a slider including a slider body and a pull tab attached to the slider body, the slider body movable forward to engage the first and second fastener elements (21,22) and movable rearward to disengage the first and second fastener elements (21,22) in accordance with operation of the pull tab; a first stop member positioned adjacently to the first fastener element in the first fastener stringer, the first stop member including a first insert inserted inside the slider body via a rear mouth of the slider and a first base arranged rearward of the first insert; and a second stop member positioned adjacently to the second fastener element in the second fastener stringer, the second stop member including a second insert inserted inside the slider body via a slit communicating between a front mouth and the rear mouth of the slider and a second base arranged rearward of the second insert, wherein the pull tab includes a pull tab main portion operated so as to move the slider body forward or rearward, characterized in that the first base is sandwiched between the second base and the pull tab main portion to form a stack in which the second base, the first base and the pull tab main portion are stacked in this order, the pull tab main portion and the first base are configured such that the pull tab main portion moves rearward to cause rearward movement of the slider body as the stack is sandwiched by human fingers in its stack direction while the first insert has been not fully inserted inside the slider body.