They work! Chums waxed cotton are light weight, noiseless, with exellent stay-in-place forward-mount temples. I have been a Chums fan for three years.
My order was made in February and didn’t received it. Bad service!!!!
I love Chums, they are excellent and lasts very long in salt summers for many years.
These are the only glasses holders that work for more than 2 weeks. I'll be ordering them again.