A multimodal polypropylene composition comprising: (A) a first propylene polymer fraction (PP1), and (B) a second propylene polymer fraction (PP2), wherein the first propylene polymer fraction (PP1) and the second propylene polymer fraction (PP2) have different weight average molecular weights, and the multimodal polypropylene composition has: (i) a melt flow rate MFR 2 (230°C, 2.16kg, ISO 1133) of from 1 to 500 g/10 min., (ii) a molecular weight distribution (Mw/Mn), determined by gel permeation chromatography according to ISO 16014-1:2003 and ISO 16014-4:2003, of at least 6.0 and not more than 20.0, (iii) an isotacticity index (mmmm pentads) of at least 97 %, measured by 13 C-NMR, as described herein, (iv) a xylene soluble fraction (XCS), determined according to ISO 16152; first edition, 2005-07-01 at 25 °C of less than 3.5 wt.%, and (v) an amount of 20 to 35 % of lamella thicknesses within a range of 24.16 to 84.55 nm with respect to the whole lamella thickness range, as obtained by stepwise isothermal segregation technique (SIST), as described herein and calculating the lamella thickness distribution according to the following equation: T m = T 0 1 − 2 σ Δ H 0 ⋅ L where T 0 =457 K, ΔH 0 =134×106 J/m 3 , σ =0,049.6 J/m 2 and L is the lamella thickness in nm. (A) a first propylene polymer fraction (PP1), and (B) a second propylene polymer fraction (PP2), wherein the first propylene polymer fraction (PP1) and the second propylene polymer fraction (PP2) have different weight average molecular weights, and the multimodal polypropylene composition has: (i) a melt flow rate MFR 2 (230°C, 2.16kg, ISO 1133) of from 1 to 500 g/10 min., (ii) a molecular weight distribution (Mw/Mn), determined by gel permeation chromatography according to ISO 16014-1:2003 and ISO 16014-4:2003, of at least 6.0 and not more than 20.0, (iii) an isotacticity index (mmmm pentads) of at least 97 %, measured by 13 C-NMR, as described herein, (iv) a xylene soluble fraction (XCS), determined according to ISO 16152; first edition, 2005-07-01 at 25 °C of less than 3.5 wt.%, and (v) an amount of 20 to 35 % of lamella thicknesses within a range of 24.16 to 84.55 nm with respect to the whole lamella thickness range, as obtained by stepwise isothermal segregation technique (SIST), as described herein and calculating the lamella thickness distribution according to the following equation: T m = T 0 1 − 2 σ Δ H 0 ⋅ L where T 0 =457 K, ΔH 0 =134×106 J/m 3 , σ =0,049.6 J/m 2 and L is the lamella thickness in nm. (i) a melt flow rate MFR 2 (230°C, 2.16kg, ISO 1133) of from 1 to 500 g/10 min., (ii) a molecular weight distribution (Mw/Mn), determined by gel permeation chromatography according to ISO 16014-1:2003 and ISO 16014-4:2003, of at least 6.0 and not more than 20.0, (iii) an isotacticity index (mmmm pentads) of at least 97 %, measured by 13 C-NMR, as described herein, (iv) a xylene soluble fraction (XCS), determined according to ISO 16152; first edition, 2005-07-01 at 25 °C of less than 3.5 wt.%, and (v) an amount of 20 to 35 % of lamella thicknesses within a range of 24.16 to 84.55 nm with respect to the whole lamella thickness range, as obtained by stepwise isothermal segregation technique (SIST), as described herein and calculating the lamella thickness distribution according to the following equation: T m = T 0 1 − 2 σ Δ H 0 ⋅ L where T 0 =457 K, ΔH 0 =134×106 J/m 3 , σ =0,049.6 J/m 2 and L is the lamella thickness in nm. <EOS>