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 that is anchored in each of the beads and extends in the sidewalls to the crown, a crown reinforcement or belt that extends in the crown in the circumferential direction and that is situated radially between the carcass reinforcement and the tread, said belt comprising a multilayer composite laminate (10a, 10b, 10c) comprising at least three superposed layers of reinforcers (110, 120, 130), 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; ∘ in contact with the first layer and disposed beneath the latter, a second layer of rubber comprising a second row of reinforcers which are oriented at a given angle beta, positive or negative, of between 10 and 30 degrees with respect to the circumferential direction, these reinforcers, referred to as second reinforcers, being metal reinforcers; ∘ in contact with the second layer and disposed beneath the latter, a third layer of rubber comprising a third row of reinforcers which are oriented at an angle gamma that is opposite to the angle beta, said angle gamma itself being between 10 and 30 degrees with respect to the circumferential direction, these reinforcers, referred to as third reinforcers, being metal reinforcers; ∘ the second and third reinforcers being steel monofilaments of which the diameter or thickness, denoted D2 and D3, respectively, is between 0.20 mm and 0.50 mm; ∘ 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, being between 100 and 180 threads/dm. characterized in that: ∘ the first reinforcers made of heat-shrinkable textile material are individual multifilament fibres having a single ply twisted individually on themselves with a torsion T greater than 100 turns per metre; ∘ the envelope diameter denoted D1 of the first reinforcers is between 0.30 mm and 0.60 mm; ∘ the density d 1 of the first reinforcers in the first layer of rubber, measured in the axial direction, is between 90 and 150 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; ∘ in contact with the first layer and disposed beneath the latter, a second layer of rubber comprising a second row of reinforcers which are oriented at a given angle beta, positive or negative, of between 10 and 30 degrees with respect to the circumferential direction, these reinforcers, referred to as second reinforcers, being metal reinforcers; ∘ in contact with the second layer and disposed beneath the latter, a third layer of rubber comprising a third row of reinforcers which are oriented at an angle gamma that is opposite to the angle beta, said angle gamma itself being between 10 and 30 degrees with respect to the circumferential direction, these reinforcers, referred to as third reinforcers, being metal reinforcers; ∘ the second and third reinforcers being steel monofilaments of which the diameter or thickness, denoted D2 and D3, respectively, is between 0.20 mm and 0.50 mm; ∘ 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, being between 100 and 180 threads/dm. ∘ the first reinforcers made of heat-shrinkable textile material are individual multifilament fibres having a single ply twisted individually on themselves with a torsion T greater than 100 turns per metre; ∘ the envelope diameter denoted D1 of the first reinforcers is between 0.30 mm and 0.60 mm; ∘ the density d 1 of the first reinforcers in the first layer of rubber, measured in the axial direction, is between 90 and 150 threads/dm;