A slide fastener with which a slide fastener-attached product capable of preventing or suppressing exposure of a fastener tape can be manufactured is provided. The slide fastener includes fastener stringers and a slider, in which each of fastener elements includes an element base portion and a fin portion extending from the element base portion toward a tape inner side of a fastener tape and having a smaller dimension in a tape thickness direction than the element base portion, in which, at a shoulder-port-side end portion of a slider body, a leading end portion of the fin portion of each of the fastener elements is positioned on the outer side of the slider body with respect to an inner wall surface of a flange, and in which the ratio of a total fin width to an element maximum width is less than 40%.

A slide fastener includes: a first slide fastener member and a second slide fastener member. The first slide fastener member includes a first cloth tape, a first element row, a slider, and a retainer pin member. The second slide fastener member includes a second cloth tape, a second element row, and a separable pin member. When the retainer pin member and the separable pin member are engaged with each other, a slider accommodating area is formed. An inclined protrusion is provided on a retainer pin arm. When the retainer pin member and the separable pin member are engaged with each other and the slider is located in the slider accommodating area and abuts against the retainer pin main body, the inclined protrusion abuts against an outer peripheral side of the slider and drives the slider to be inclined toward the separable pin member.