Knitted part

A knitted part flat-knitted from at least one knitting thread, said knitted part comprising a ground fabric portion comprising a plurality of ground fabric courses, and also at least one wave portion which extends across a plurality of wales, which comprises a plurality of wave portion courses and in which, in each case, a loop has been knitted in a first wale in a first wave portion course and at least one further wave portion course, whereas, in each case, in a second wale, a further loop knitted in the first wave portion course extends across a plurality of wave portion courses, wherein at least one elastic weft thread runs through at least a proportion of the ground fabric courses and the wave portion courses, wherein the weft thread runs at least through the first wave portion course and floats across the further loop, which extends across a plurality of wave portion courses, of the second wale, wherein a next elastic thread following the extended further loop, seen in a direction of the second wale, floats through a ground fabric loop.