I am 60 years old, have arthritis and poor circulation in both hands. I use a small hand warmer with activated air inside under the palm and then Gorilla's Gloves as the last layer. It keeps my hands and fingers warm all day and thin enough to allow me full dexterity with both hands. ABSOLUTELY the warmest and thinnest liner gloves I've ever tried. 4 stars because they are NOT heavily constructed and if you don't carefully remove them they look like they will tear.
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