Strand-shaped element comprising: (i) an inner structure; and (ii) a polymer composition surrounding the inner structure, wherein the polymer composition is obtainable or obtained by compounding at least the following components: (a) 24-32 wt.-% of a mixture of two different types of linear very low density polyethylene (VLDPE) compositions, wherein said mixture comprises 20-26 wt.-% of a first composition having a density in the range from 0.85 g/cm 3 to 0.95 g/cm 3, as measured according to ISO 1183, and 1-7 wt.-% of a second composition having a density in the range from 0.85 g/cm 3 to 0.95 g/cm 3, as measured according to ISO 1183; (b) 10-17 wt.-% of a polyolefin-elastomer, which is an ultra-low density random ethylene-octene copolymer having a glass transition temperature of below -50°C, as determined in the polymer composition or in pure form; and a melting point of below 40°C, and wherein the polyolefin-elastomer has a density in the range from 0.80 g/cm 3 to 0.90 g/cm 3, as measured according to ASTM D792, and wherein the polyolefin-elastomer has an elongation at break of at least 1000 %, as measured by ASTM D638; (c) a flame retardant filler in an amount of 55-65 wt.-%, which is aluminum hydroxide; (d) 0.1-3.0 wt.-% of an antioxidant; and (e) 0.5-2.5 wt.-% of a coupling agent composition; wherein the polymer composition has an elongation at break in the range from 150 % to 500 %, as measured by IEC 60811-501, and wherein the strand-shaped element is obtainable or obtained by applying the polymer composition of (ii) by extrusion to the inner structure. (i) an inner structure; and (ii) a polymer composition surrounding the inner structure, wherein the polymer composition is obtainable or obtained by compounding at least the following components: (a) 24-32 wt.-% of a mixture of two different types of linear very low density polyethylene (VLDPE) compositions, wherein said mixture comprises 20-26 wt.-% of a first composition having a density in the range from 0.85 g/cm 3 to 0.95 g/cm 3, as measured according to ISO 1183, and 1-7 wt.-% of a second composition having a density in the range from 0.85 g/cm 3 to 0.95 g/cm 3, as measured according to ISO 1183; (b) 10-17 wt.-% of a polyolefin-elastomer, which is an ultra-low density random ethylene-octene copolymer having a glass transition temperature of below -50°C, as determined in the polymer composition or in pure form; and a melting point of below 40°C, and wherein the polyolefin-elastomer has a density in the range from 0.80 g/cm 3 to 0.90 g/cm 3, as measured according to ASTM D792, and wherein the polyolefin-elastomer has an elongation at break of at least 1000 %, as measured by ASTM D638; (c) a flame retardant filler in an amount of 55-65 wt.-%, which is aluminum hydroxide; (d) 0.1-3.0 wt.-% of an antioxidant; and (e) 0.5-2.5 wt.-% of a coupling agent composition; wherein the polymer composition has an elongation at break in the range from 150 % to 500 %, as measured by IEC 60811-501, and wherein the strand-shaped element is obtainable or obtained by applying the polymer composition of (ii) by extrusion to the inner structure. (a) 24-32 wt.-% of a mixture of two different types of linear very low density polyethylene (VLDPE) compositions, wherein said mixture comprises 20-26 wt.-% of a first composition having a density in the range from 0.85 g/cm 3 to 0.95 g/cm 3, as measured according to ISO 1183, and 1-7 wt.-% of a second composition having a density in the range from 0.85 g/cm 3 to 0.95 g/cm 3, as measured according to ISO 1183; (b) 10-17 wt.-% of a polyolefin-elastomer, which is an ultra-low density random ethylene-octene copolymer having a glass transition temperature of below -50°C, as determined in the polymer composition or in pure form; and a melting point of below 40°C, and wherein the polyolefin-elastomer has a density in the range from 0.80 g/cm 3 to 0.90 g/cm 3, as measured according to ASTM D792, and wherein the polyolefin-elastomer has an elongation at break of at least 1000 %, as measured by ASTM D638; (c) a flame retardant filler in an amount of 55-65 wt.-%, which is aluminum hydroxide; (d) 0.1-3.0 wt.-% of an antioxidant; and (e) 0.5-2.5 wt.-% of a coupling agent composition; wherein