Three layers of insulation: Pure wool, high tech foam and a NASA like aluminum heat shield.;Very thin, yet effective;Keeps heat in and cold out;Made in Germany

• Pedag 145 Solar Insulating Insole with 3 Layer Thermal Shield: Wool, High Tech Foam and Special Aluminium Reflector, Men's 10
• US M10/EU 43

Pedag 145 Solar Insulating Insole with 3 Layer Thermal Shield: Wool, High Tech Foam and Special Aluminium Reflector, Men's 10Pedag