After purchasing a pair of these socks for the cold winter months, the only heat these socks generated is from my own dissatisfaction. After charging them from 6+ hours, you have 3 heat options: Non-existent, barely enough heat for a ladybug to notice, and "My hand feels the smallest bit of warmth if I press hard onto the single bar across the top of my foot". Not only will you be devoid of heat as the single bar on top of your foot tries to melt an ice-cube, but you will also be annoyed with geSee full review