If these are comfortable, they are by far the greatest invention ever created.  No one likes their toes to be frozen and once they get that way, it’s hard for them to thaw.  Then you’re stuck with cold feet most of the day.  That is unless you manage to sneak a space heater into your workplace.  That won’t really help you while you’re outside either though.  If you are spending the day in the snow with your kids, you could enjoy warm toes, even if the rest of you is frozen.

The insoles have embedded rechargeable batteries and keep the insoles at 98.6 degrees (Fahrenheit).  It will run for up to eight hours with a full charge.  Which is plenty of time for you to freeze in the snow.  The lithium-ion cells are said to be undetectable and could be recharged plenty (up to 500 times).  To charge these up you’ll need an AC adapter.  The insoles come in both men and women’s sizes and they are sadly just a bit pricey.  For a pair of these it will cost you $99.95 from Hammacher and Schlemmer.

Source: BookofJoe