A hook and eye fastener (1, 101, 201) for securing two pieces (15, 27) of a garment together, the hook part (3, 103, 203) being mounted on a face of one of the pieces and the eye part (5, 105, 205) being mounted on a face of the other of the pieces, in which: the hook part (3, 103, 203) comprising a substantially planar body laid flat on the face of the piece and having an arm extending outwardly therefrom, the arm comprising an inner portion connected at one end to the body and extending outwardly substantially perpendicular to the body and an outer portion connected to the other end of the inner portion and extending substantially parallel to the planar body, the side of the outer portion facing the planar body defining an abutment surface; and the eye part (5, 105, 205) comprising a substantially planar frame laid flat on the face of the other of the pieces; the frame defining an open mouth dimensioned to receive the outer portion of the hook part's arm and having a complementary abutment surface on the underside of the frame for engagement of the abutment surface of the hook part, and, with the faces of the garment pieces closely juxtaposed, the eye part slidably engageable in a direction parallel to the faces of the garment pieces with the hook part to fasten the two pieces (15, 27) of the garment together; characterised in that: the outer portion of the arm of the hook part is chevron shaped, the open mouth of the frame of the eye part is pentagonally shaped, and the eye part (5, 105, 205) further comprises an upstanding lip on the top side of the frame adjacent the complementary abutment surface, the upstanding lip being operable as an end stop for the hook part when the hook part and eye part are brought into engagement with each other to assist location of the hook part and eye part into a finding position; and in which there is provided a boss on one of the abutment surfaces and a complementary dimple on the other of the abutment surfaces; and in which the inner portion of the hook part has at least one rib extending upwardly from the body to the outer portion along a rear face of the inner portion. the hook part (3, 103, 203) comprising a substantially planar body laid flat on the face of the piece and having an arm extending outwardly therefrom, the arm comprising an inner portion connected at one end to the body and extending outwardly substantially perpendicular to the body and an outer portion connected to the other end of the inner portion and extending substantially parallel to the planar body, the side of the outer portion facing the planar body defining an abutment surface; and the eye part (5, 105, 205) comprising a substantially planar frame laid flat on the face of the other of the pieces; the frame defining an open mouth dimensioned to receive the outer portion of the hook part's arm and having a complementary abutment surface on the underside of the frame for engagement of the abutment surface of the hook part, and, with the faces of the garment pieces closely juxtaposed, the eye part slidably engageable in a direction parallel to the faces of the garment pieces with the hook part to fasten the two pieces (15, 27) of the garment together; characterised in that: the outer portion of the arm of the hook part is chevron shaped, the open mouth of the frame of the eye part is pentagonally shaped, and the eye part (5, 105, 205) further comprises an upstanding lip on the top side of the frame adjacent the complementary abutment surface, the upstanding lip being operable as an end stop for the hook part when the hook part and eye part are brought into engagement with each other to assist location of the hook part and eye part into a finding position; and in which there is provided a boss on one of the abutment surfaces and a complementary dimple on the other of the abutment surfaces; and in which the inner portion of the hook part has at least one rib extending upwardly from the body to the outer portion along a rear face of the inner portion.