A top of a convertible vehicle includes at least one top element displaceable between a closed position and a storage position. Each of two side portions accommodates a closing system fixing the relevant side portion to a front apron of the vehicle or to a further top element. The closing systems are displaceable between a blocked position and a cleared position. Each closing system includes a locking hook, which interacts with a corresponding locking element and which is pivotable about a hook axis, and a drive unit, which drives a control element pivotable about a pivot axis and mounted at the relevant side portion as well as being connected to the locking hook via a coupling unit. The pivot axis of the control element and the hook axis are oriented with respect to each other in a skew fashion and the coupling unit includes at least one 3-D link.