Digit 1 2 3 Basic Fibre Typese Major feature and/or application Special feature 1 - Cotton-type 2 - Wool-type 3 - Coarse-type 4 - Converter Tow 0 - medium hot-air-shrinkage 1 - high hot-air-shrinkage 2 - low hot-air-shrinkage 3 - high-performed 4 - low pilling 5 - Wildman 6 - wadding and filling type 7 - high-shrinking 8 - no pilling 1 - silicone-treated 2 - 3 - 4 - fleece fabric 5 - special finish