SoleCooler ClimFeet: Reversable Heating & Cooling Insoles without Batteries or Chemicals

Step into year-round comfort with the SoleCooler ClimFeet. They’re reversible insoles that warm your feet in winter (+4°C) and cool them in summer (-3.5°C)--all without electricity or chemicals.   -Patented Thermodynamic Technology: Uses the mechanical energy of your steps to..