I mainly use them to keep my hand warm when I run when it's around 40F outside. The coldest I've used them was probably 25. By the time it approaches 40 my hands are actually sweating enough that I end up taking them off to let my hands cool down. I usually walk 30 minutes to an hour and they do a great job. I've actually ordered a second set in case one pair sweats, I can wash them and have a second pair as a backup. Washed 4-5 times with normal clothes, all ok. I can use my watch and phone well with it, so the touch functionality is a nice bonus for me. I've never used them in the rain, so I can't comment on the waterproofness.
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