A fully adjustable and comfortable way to keep glasses from the worst of fates; we Original Chum Eyeglass Retainers in two sizes to accommodate virtually an frame style. While all glasses are different, we find the Standard End Chums to best fit most plastic style frame sunglasses, while the Small End Chums are better suited for narrower wire frame glasses. Made of durable cotton, we offer Original Chums two sizes for your convenience; colors are assorted.