The aluminium foil shields the ground cold from the foot with a soft cushion top to keep the foot warm. Includes a template with guidelines for ladies sizes 3 to 8, and mens sizes 7-12. Just trim to desired size.
Q & A's
Q: Does the foil side face the foot or the bottom of the shoe? A: The foil side should face the bottom of the shoe as this helps block the cold from penetrating the shoe and reaching your foot.
Q: how thick are the soles A: These insoles are approximately 6mm in thickness.