The sock Ski Pro is an ITALIAN PRODUCT. The employed fibres were suitably designed and tested so as to improve comfort and perspiration, even after LONG-LASTING EXERCISE.   PP DRY ARN has been certified as the world's lightest and most transpiring fibre, with very low drying time. Composition: 28% PP Dry Arn; 28 Polyamide;13% Cotton;13% Acrylic;12% Elastomer; 6% Lycra.