I just bought the Copper Fit knee sleeve. On the package it states it's 86% copper. On the knee sleeve it states it's 4% copper with other fibers. I bought the sleeve so my knee wouldn't hurt so much when I walk up a 2 mile hill for work. I really don't feel much compression from the sleeve. Support hose has more compression.
Bottom Line: No, I would not recommend this to a friend
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