The Switchback retainer is no stranger to water, sweat, dirt, or any combination of the three. The two-port end design is built to accommodate and switch between small and large-framed shades. The stretchy silicone construction is hydrophobic, UV/corrosion-resistant, and offered in a variety of neon solids and fades to up the octane of any adventure. Looking for versatility in fit and adaptability for adventures on land and water? Look no further.