Insulating or insulation for covering a body

The present invention relates to an insulating element (1) for coating a body (2) having an insulating configured surface (10) having a first edge (11) and a second edge (12), each extending substantially in the longitudinal direction (L) of the extending insulating member (1). The insulating member (1) is characterized in that the insulating configured surface (10) has a radially contracting bias, and that the insulating configured surface (10) in the circumferential direction (U) is dimensioned such that the edges (in the mounted state 11, 12) overlap.