GNAUMORE Set of 12 Glasses Straps, Universal Glasses Chain, Leather Adjustable Glasses Cord for Men and Women, for Sunglasses, Reading Glasses, multicoloured : Amazon.de: Fashion
RHS Online Adjustable Glasses Strap Universal Fit Sports Eyewear Retainer Sunglasses Straps Safety Chain Holder with Small Round-Head
Adjustable Glasses Holder Strap, Elastic Rope Eyewear Retainer for Sunglasses, Reading Eyeglasses, or Safety Glasses - Sport Gifts for Men & Boys, Pack of 6, Black & Navy & Grey - Walmart.com
Didinsky strap for reading glasses
Fashion Reading Glasses Chain for Women Metal Sunglasses Cords Eyeglass Lanyard Hold Straps Eyewear Retainer - AliExpress