The Neoprene eyewear retainer has been a favorite of river runners and people on the water for decades. The lock-stitched ends slip over most size eyewear frames. For a tighter fit, slide the retainer further down your frames. Content + Care: - 100% Neoprene - Handwash in warm water and dish soap Size + Fit: - Fits most frame styles - For a tighter fit, slide the retainer further down your frames - Keeps frames weighing up to 15 grams afloat