A composition [composition] comprising: - from 1 to 90 % by weight (wt. %) of at least one poly(aryl ether ketone) [(PAEK) polymer], wherein more than 50 % by moles of the recurring units of said (PAEK) polymer are recurring units (R PAEK) comprising a Ar-C -Ar' group, wherein: Ar and Ar', equal to or different from each other, are aromatic groups, and the recurring units (R PAEK) are selected from groups of formulae (J-A) to (J-O): wherein: - each of R', equal to or different from each other, is selected from a halogen, an alkyl, an alkenyl, an alkynyl, an aryl, an ether, a thioether, a carboxylic acid, an ester, an amide, an imide, an alkali or alkaline earth metal sulfonate, an alkyl sulfonate, an alkali or alkaline earth metal phosphonate, an alkyl phosphonate, an amine, and a quaternary ammonium, and - j is zero or an integer ranging from 1 to 4; - from 1 to 25 wt. % of at least one polyphenylsulfone polymer [(PPSU) polymer], wherein more than 50 % by moles of the recurring units of said (PPSU) polymer are recurring units (R PPSU) of formula: - from 1 to 90 wt. % of at least one polyethersulfone polymer [ polymer], wherein more than 50 % moles of recurring units of the polymer are recurring units (R PES) independently selected from units of formula: wherein: - each of R', equal to or different from each other, is selected from a halogen, an alkyl, an alkenyl, an alkynyl, an aryl, an ether, a thioether, a carboxylic acid, an ester, an amide, an imide, an alkali or alkaline earth metal sulfonate, an alkyl sulfonate, an alkali or alkaline earth metal phosphonate, an alkyl phosphonate, an amine, and a quaternary ammonium; and - each of j', equal to or different from each other, is selected from 0, 1, 2, 3, or 4; and - from 0.1 to 50 wt. % of at least one reinforcing filler, wherein: all wt. % are based on the total weight of the composition, and the PES polymer has a melt flow rate at a temperature of 380°C and under a load of 2.16 kg according to ASTM D1238 ranging from 65 g/10 min to 85 g/10 min. - from 1 to 90 % by weight (wt. %) of at least one poly(aryl ether ketone) [(PAEK) polymer], wherein more than 50 % by moles of the recurring units of said (PAEK) polymer are recurring units (R PAEK) comprising a Ar-C -Ar' group, wherein: Ar and Ar', equal to or different from each other, are aromatic groups, and the recurring units (R PAEK) are selected from groups of formulae (J-A) to (J-O): wherein: - each of R', equal to or different from each other, is selected from a halogen, an alkyl, an alkenyl, an alkynyl, an aryl, an ether, a thioether, a carboxylic acid, an ester, an amide, an imide, an alkali or alkaline earth metal sulfonate, an alkyl sulfonate, an alkali or alkaline earth metal phosphonate, an alkyl phosphonate, an amine, and a quaternary ammonium, and - j is zero or an integer ranging from 1 to 4; Ar and Ar', equal to or different from each other, are aromatic groups, and the recurring units (R PAEK) are selected from groups of formulae (J-A) to (J-O): - each of R', equal to or different from each other, is selected from a halogen, an alkyl, an alkenyl, an alkynyl, an aryl, an ether, a thioether, a carboxylic acid, an ester, an amide, an imide, an alkali or alkaline earth metal sulfonate, an alkyl sulfonate, an alkali or alkaline earth metal phosphonate, an alkyl phosphonate, an amine, and a quaternary ammonium, and - j is zero or an integer ranging from 1 to 4; - from 1 to 25 wt. % of at least one polyphenylsulfone polymer [(PPSU) polymer], wherein more than 50 % by moles of the recurring units of said (PPSU) polymer are recurring units (R PPSU) of formula: - from 1 to 90 wt. % of at least one polyethersulfone polymer [ polymer], wherein more than 50 % moles of recurring units of the polymer are recurring units (R PES) independently selected from units of formula: wherein: - each of R', equal to or different from each other, is selected from a halogen, an alkyl, an alkenyl, an alkynyl, an aryl, an ether, a thioether, a carboxylic acid, an ester, an amide, an imide, an alkali or alkaline earth metal sulfonate, an alkyl sulfonate, an alkali or alkaline earth metal phosphonate, an alkyl phosphonate, an amine, and a quaternary ammonium; and - each of j', equal to or different from each other, is selected from 0, 1, 2, 3, or 4; and - each of R', equal to or different from each other, is selected from a halogen, an alkyl, an alkenyl, an alkynyl, an aryl, an ether, a thioether, a carboxylic acid, an ester, an amide, an imide, an alkali or alkaline earth metal sulfonate, an alkyl sulfonate, an alkali or alkaline earth metal phosphonate, an alkyl phosphonate, an amine, and a quaternary ammonium; and - each of j', equal to or different from each other, is selected from 0, 1, 2, 3, or 4; and - from 0.1 to 50 wt. % of at least one reinforcing filler, wherein: all wt. % are based on the total weight of the composition, and the PES polymer has a melt flow rate at a temperature of 380°C and under a load of 2.16 kg according to ASTM D1238 ranging from 65 g/10 min to 85 g/10 min. all wt. % are based on the total weight of the composition, and the PES polymer has a melt flow rate at a temperature of 380°C and under a load of 2.16 kg according to ASTM D1238 ranging from 65 g/10 min to 85 g/10 min.