<Ul> <Li> A, B, C, D, E, EE, EEE, EEEE, F, G (typical North American system, with the unlettered norm being D for men and B for women) </Li> <Li> 4A, 3A, 2A, A, B, C, D, E, 2E, 3E, 4E, 5E, 6E (variant North American) </Li> <Li> C, D, E, F, G, H (common UK; "medium" is usually F, but varies by manufacturer--makers Edward Green and Crockett & Jones, among others, use E instead, but one maker's E is not necessarily the same size as another's). </Li> <Li> N (narrow), M (medium) or R (regular), W (wide) </Li> </Ul> <Li> A, B, C, D, E, EE, EEE, EEEE, F, G (typical North American system, with the unlettered norm being D for men and B for women) </Li> <Li> 4A, 3A, 2A, A, B, C, D, E, 2E, 3E, 4E, 5E, 6E (variant North American) </Li> <Li> C, D, E, F, G, H (common UK; "medium" is usually F, but varies by manufacturer--makers Edward Green and Crockett & Jones, among others, use E instead, but one maker's E is not necessarily the same size as another's). </Li>

How many cm is a us size 8 shoe