Costa C- Line Retainer – Black.

This lightweight retainer is ultra-thin so you will hardly notice it’s there. Costa built this retainer to fit most frame styles so you can keep your glasses secure while paddling, boating, relaxing or venturing around town.

FEATURES Ultra- Thin Lightweight Wire End-to-End Measurement: 20″

Ultra- Thin.
Lightweight Wire.
End-to-End Measurement:20″.