These BigEvan Chums keep my sunglasses secured in any conditions I have tried yet. Rain, sun, creek water, etc. And not only are rhe great functionally they look bitchin'. Had so many compliments in the colors and style. Almost want to keep it to myself they are so unique amd stand out. Want great look and unparalleled fit and functionallity? Gotta get a pair and see for yourself!!!
I love chums eyewear retainers and wouldn’t go without them