Horse Hair and other Animal Fibres
From Cargo Handbook - the world's largest cargo transport guidelines website
Usually shipped in bales. Argentine dressed horse hair has a natural moisture content varying between 6% and 10%, according to the season in which it is packed. Subject to loss in weight due to drying out. Horse hair deteriorates when wet, either from external causes or as a result of damp packing, which causes the material to become brittle and rot. Similarly mohair and other animal fibres also react to the presence of any excess moisture.