The following natural characteristics may occur in leather:

Horzelbeten
Warble fly bites and other insect bites may be incorporated in visible areas.
Horn injuries and abrasions may be visibly upholstered, if healed.
Insect bites do not detract from the quality of the leather.
Manure stains are natural characteristics in leather.
Nekplooien
Neck folds give a rugged appearance.
Veins show that the cattle are well cared for.
Barbed wire damage and veins are typical characteristics of genuine leather.
Salt stains can occur during the tanning process.