Radial tyre, defining three main directions, circumferential, axial and radial, comprising a crown surmounted by a tread, two sidewalls, two beads, each sidewall connecting each bead to the crown, a carcass reinforcement anchored in each of the beads and extending in the sidewalls and the crown, a crown reinforcement or belt extending in the crown in the circumferential direction and situated radially between the carcass reinforcement and the tread, the said belt comprising a multilayer composite laminate (10a, 10b, 10c) comprising at least three superposed layers of reinforcers (110, 120, 130), the said reinforcers being unidirectional within each layer and embedded in a thickness of rubber (C1, C2, C3 respectively), with: ∘ on the tread side, a first layer of rubber comprising a first row of reinforcers which are oriented at an angle alpha of -5 to +5 degrees with respect to the circumferential direction, these reinforcers referred to as first reinforcers being made of a heat-shrinkable textile material; o in contact with the first layer and arranged underneath the latter, a second layer of rubber comprising a second row of reinforcers which, oriented at a given angle beta, positive or negative, are comprised between 10 and 30 degrees with respect to the circumferential direction, these reinforcers referred to as secondary reinforcers being metal reinforcers; o in contact with the second layer and arranged underneath the latter, a third layer of rubber comprising a third row of reinforcers which are oriented at an angle gamma the opposite of the angle beta, itself comprised between 10 and 30 degrees with respect to the circumferential direction, these reinforcers referred to as third reinforcers being metal reinforcers; o the heat-shrinkable textile material of the first reinforcers being a polyester; o the second and third reinforcers consisting of steel monofilaments of which the diameter, denoted D2 and D3 respectively, is comprised between 0.20 mm and 0.50 mm; characterized in that: o the mean envelope diameter D1 of the first reinforcers is comprised between 0.40 mm and 0.70 mm; o the density d 1 of the first reinforcers in the first layer of rubber, measured in the axial direction, is comprised between 70 and 130 threads/dm; o the density, d 2 and d 3 respectively, of the second and third reinforcers in the second and third layers of rubber respectively, measured in the axial direction, is comprised between 120 and 180 threads/dm. ∘ on the tread side, a first layer of rubber comprising a first row of reinforcers which are oriented at an angle alpha of -5 to +5 degrees with respect to the circumferential direction, these reinforcers referred to as first reinforcers being made of a heat-shrinkable textile material; o in contact with the first layer and arranged underneath the latter, a second layer of rubber comprising a second row of reinforcers which, oriented at a given angle beta, positive or negative, are comprised between 10 and 30 degrees with respect to the circumferential direction, these reinforcers referred to as secondary reinforcers being metal reinforcers; o in contact with the second layer and arranged underneath the latter, a third layer of rubber comprising a third row of reinforcers which are oriented at an angle gamma the opposite of the angle beta, itself comprised between 10 and 30 degrees with respect to the circumferential direction, these reinforcers referred to as third reinforcers being metal reinforcers; o the heat-shrinkable textile material of the first reinforcers being a polyester; o the second and third reinforcers consisting of steel monofilaments of which the diameter, denoted D2 and D3 respectively, is comprised between 0.20 mm and 0.50 mm; o the mean envelope diameter D1 of the first reinforcers is comprised between 0.40 mm and 0.70 mm; o the density d 1 of the first reinforcers in the first layer of rubber, measured in the axial direction, is comprised between 70 and 130 threads/dm; o the density, d 2 and d 3 respectively, of the second and third reinforcers in the second and third layers of rubber respectively, measured in the axial direction, is comprised between 120 and 180 threads/dm.