A sport shoe includes a first lacing strip, a second lacing strip, an intermediate strip and a closing device. The closing device includes a first winder and a second winder for stressing the first lacing strip and the second lacing strip so as to bring them closer together, and an actuator unit for selectively rotating the first winder or the second winder. The first winder, the second winder and the actuator unit are rotatably supported on a single support unit. The shoe further also includes a plug-in member of the support unit on the intermediate strip.