Insulating foam & felt are combined to an aluminium foil for softness and comfort. Holds the heat and keeps the cold out.

Sizes:
Men's

6/7 (INSO F1A)

7/8 (INSO F1A)

8/9 (INSO F1A)

10/11 (INSO F1A)

12/13 (INSO F1A)

Women's

4/5 (INSO F2A)

6/7 (INSO F2A)

8/9 (INSO F2A)

Sold by the pair and the dozen