Thermoplastic polymer composition comprising (or consisting of) components,, and optionally, and/or: at least one block copolymer A comprising (or consisting of): A1: 60 to 95 wt.-% - based on block copolymer A - polymerized units of at least one vinyl aromatic monomer, preferably styrene, and A2: 5 to 40 wt.-% - based on block copolymer A - polymerized units of at least one conjugated diene, preferably butadiene or isoprene; a stabilizer combination consisting of stabilizer components, and: B1: 1500 to 2100 ppm (0.150 to 0.210 wt.-%) - based on the entire thermoplastic polymer composition - 2,6-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5-triazin-2-ylamino) phenol (CAS number: 991-84-4), B2: 1000 to 1600 ppm (0.100 to 0.160 wt.-%) - based on the entire thermoplastic polymer composition - 2-[1-(2-hydroxy-3,5-di-tert-pentylphenyl)ethyl]-4,6-di-tert-pentylphenyl acrylate (CAS number: 123968-25-2) or 2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl acrylate (CAS number: 61167-58-6) or mixtures thereof, and B3: 1000 to 1600 ppm (0.100 to 0.160 wt.-%) - based on the entire thermoplastic polymer composition - tris(2,4-di-tert.-butylphenyl)phosphite (CAS number: 31570-04-4); 0 to 5000 ppm (0 to 0.500 wt.-%) - based on the entire thermoplastic polymer composition - of one or more stabilizers different from, and; optionally one or more additives and/or processing aids other than and; optionally at least one, preferably 1, 2 or 3, more preferably one, thermoplastic polymer TP other than block copolymer A. at least one block copolymer A comprising (or consisting of): A1: 60 to 95 wt.-% - based on block copolymer A - polymerized units of at least one vinyl aromatic monomer, preferably styrene, and A2: 5 to 40 wt.-% - based on block copolymer A - polymerized units of at least one conjugated diene, preferably butadiene or isoprene; A1: 60 to 95 wt.-% - based on block copolymer A - polymerized units of at least one vinyl aromatic monomer, preferably styrene, and A2: 5 to 40 wt.-% - based on block copolymer A - polymerized units of at least one conjugated diene, preferably butadiene or isoprene; a stabilizer combination consisting of stabilizer components, and: B1: 1500 to 2100 ppm (0.150 to 0.210 wt.-%) - based on the entire thermoplastic polymer composition - 2,6-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5-triazin-2-ylamino) phenol (CAS number: 991-84-4), B2: 1000 to 1600 ppm (0.100 to 0.160 wt.-%) - based on the entire thermoplastic polymer composition - 2-[1-(2-hydroxy-3,5-di-tert-pentylphenyl)ethyl]-4,6-di-tert-pentylphenyl acrylate (CAS number: 123968-25-2) or 2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl acrylate (CAS number: 61167-58-6) or mixtures thereof, and B3: 1000 to 1600 ppm (0.100 to 0.160 wt.-%) - based on the entire thermoplastic polymer composition - tris(2,4-di-tert.-butylphenyl)phosphite (CAS number: 31570-04-4); B1: 1500 to 2100 ppm (0.150 to 0.210 wt.-%) - based on the entire thermoplastic polymer composition - 2,6-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5-triazin-2-ylamino) phenol (CAS number: 991-84-4), B2: 1000 to 1600 ppm (0.100 to 0.160 wt.-%) - based on the entire thermoplastic polymer composition - 2-[1-(2-hydroxy-3,5-di-tert-pentylphenyl)ethyl]-4,6-di-tert-pentylphenyl acrylate (CAS number: 123968-25-2) or 2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl acrylate (CAS number: 61167-58-6) or mixtures thereof, and B3: 1000 to 1600 ppm (0.100 to 0.160 wt.-%) - based on the entire thermoplastic polymer composition - tris(2,4-di-tert.-butylphenyl)phosphite (CAS number: 31570-04-4); 0 to 5000 ppm (0 to 0.500 wt.-%) - based on the entire thermoplastic polymer composition - of one or more stabilizers different from, and; optionally one or more additives and/or processing aids other than and; optionally at least one, preferably 1, 2 or 3, more preferably one, thermoplastic polymer TP other than block copolymer A.