The Svivreni traditionally wear sleeveless tunics and work trousers, covered with pouches and pockets for carrying the various tools they use in the course of their work. They are almost entirely covered by short, coarse hair. Svivreni custom calls for adults to never trim their hair, which grows longest and thickest on the head and arms; Svivreni regard the thickness of one's hair as an indication both of fertility and intelligence. As Svivreni tend to defer to older members of their community - the longer a Svivreni's hair, the greater that individual's status in the community.

The Svivreni are excellent mineralogists and miners, and are often hired by large corporations to oversee asteroid and planetary mining projects. The Svivreni expertise in the area of prospecting is well-known and well-regared; many have become famous scouts.