A top stop (30, 130, 230, 330) for a slide fastener comprising: a first body portion (31a, 131a, 231a, 331a) which comprises a channel (36, 136, 236, 336) having an inlet (32, 132, 232, 332) at a first side of the top stop (30, 130, 230, 330) and an outlet (34, 134, 234, 334) at a second side of the top stop (30, 130, 230, 330), the second side being opposite the first side, wherein the channel (36, 136, 236, 336) is configured to receive a portion of a slider of the slide fastener, the channel (36, 136, 236, 336) being defined by a channel first side wall (38, 138, 238, 338) and a channel second side wall (37, 137, 237, 337), and a channel bottom surface therebetween, characterized in that the channel second side wall (37, 137, 237, 337) comprises a protruding portion which defines an abutment protrusion (37a, 137a, 237a, 337a) in the channel (36, 136, 236, 336), the top stop (30, 130, 230, 330) comprises a longitudinal axis which is parallel to an axis of operation of the slider, and a distance parallel to the longitudinal axis of the top stop (30, 130, 230, 330) between the channel first side wall (38, 138, 238, 338) and channel second side wall (37, 137, 237, 337) defines a channel width, the channel width extending from the abutment protrusion (37a, 137a, 237a, 337a) to the channel first side wall (38, 138, 238, 338) is less than the channel width at the inlet and the channel width at the outlet, and the abutment protrusion (37a, 137a, 237a, 337a) is configured to restrict travel of the portion of the slider along the channel (36, 136, 236, 336), when the portion of the slider is received in the channel (36, 136, 236, 336) and is translated from the outlet (34, 134, 234, 334) towards the inlet (32, 132, 232, 332) in order to release the slider from a stringer of the slide fastener. a first body portion (31a, 131a, 231a, 331a) which comprises a channel (36, 136, 236, 336) having an inlet (32, 132, 232, 332) at a first side of the top stop (30, 130, 230, 330) and an outlet (34, 134, 234, 334) at a second side of the top stop (30, 130, 230, 330), the second side being opposite the first side, wherein the channel (36, 136, 236, 336) is configured to receive a portion of a slider of the slide fastener, the channel (36, 136, 236, 336) being defined by a channel first side wall (38, 138, 238, 338) and a channel second side wall (37, 137, 237, 337), and a channel bottom surface therebetween, characterized in that the channel second side wall (37, 137, 237, 337) comprises a protruding portion which defines an abutment protrusion (37a, 137a, 237a, 337a) in the channel (36, 136, 236, 336), the top stop (30, 130, 230, 330) comprises a longitudinal axis which is parallel to an axis of operation of the slider, and a distance parallel to the longitudinal axis of the top stop (30, 130, 230, 330) between the channel first side wall (38, 138, 238, 338) and channel second side wall (37, 137, 237, 337) defines a channel width, the channel width extending from the abutment protrusion (37a, 137a, 237a, 337a) to the channel first side wall (38, 138, 238, 338) is less than the channel width at the inlet and the channel width at the outlet, and the abutment protrusion (37a, 137a, 237a, 337a) is configured to restrict travel of the portion of the slider along the channel (36, 136, 236, 336), when the portion of the slider is received in the channel (36, 136, 236, 336) and is translated from the outlet (34, 134, 234, 334) towards the inlet (32, 132, 232, 332) in order to release the slider from a stringer of the slide fastener.