Chums Switchback Basics Eyewear Retainer. The Switchback Silicone Eyewear Retainer is a one-piece molded retainer. Get techy and stretchy with our eye-catching silicone eyewear retainers. Lightweight, hydrophobic, and extra grippy, these oh-so-pretty retainers are ideal for activities involving water, sweat, dirt, or any combination of the three.
