Sunglass straps can be made of different materials, types and colors. Ommon types include linx, terra, floater and leather cords depending on the needs of the person.

2. Sunglass straps can be made of different materials, types
and colors. Ommon types include linx, terra, floater and
leather cords depending on the needs of the person. For
usability, sunglass straps offer comfort and ergonomics.
They prevent headaches among wearers, protects the
eyes from the harmful rays of the sun and aids people
during sports, games and strenuous activities.

7. Resources:
http://www.hangers.es/