This product has been fully approved by FINA. Fabric : LZR Pure Compress/LZR Pure Flex/LZR Pure Velocity. Fabric Composition:LZR Pure Compress: 73% Polyamide 27% ElastaneLZR Pure Flex: 66% Polyamide 34% ElastaneLZR Pure Velocity: 66% Polyamide 34%Elastane.