Flexible protective corrugated tube

The invention relates to a flexible protective corrugated tube comprising at least two different yarns and a plurality of larger-diameter zones and a plurality of smaller-diameter zones which are alternated along the length of the tube. The inventive tube is characterized in that first yarns form a weave of weft courses combined with stitch courses. In addition, the tube can comprise second yarns which also form a weave of stitch courses combined with weft courses. In this way, the tube obtained has improved flexibility, adaptability and bendability.