Amazon.com: Chums Original Cotton Retainer - Unisex Eyewear Keeper for Sunglasses & Glasses - Adjustable Fit, Washable & Made in USA (Large-End, Black) : Tools & Home Improvement
Sunglass Adjustable Sturdy Eyeglass Sport Strap Buoy Floating Cords Retainer With Silicon End Tube Floaters - AliExpress