The Black Sun (German: Schwarze Sonne) is a very ambiguous and complex symbol. It has several variants of meaning and origin. Here are the most common of them:

The idea of the "black sun" (sol niger) is found in medieval alchemists, but for them it was a metaphor that had different meanings, including immersion in self-knowledge.

Black Sun is also a very ancient Nordic symbol.

The Black Sun is one of the solar Slavic symbols. The symbol of the Black Sun consists of two circles that intersect with the sun's rays coming from the center. The sign has twelve rays, like twelve months in a year.

Chevrons and patches made of rubber (PVC) tolerate adverse conditions much better - they do not burn out in the sun, they are not afraid of moisture and dirt, unlike jacquard chevrons and embroidered patches.