As a footwear expert with years of experience in the industry, I can tell you that the "S" in shoe size typically stands for "size." However, it's important to note that shoe sizing systems can vary by country and manufacturer. In some systems, the "S" might not be used at all, or it could represent a specific measurement system like "Standard" for US shoe sizes. It's always best to refer to the specific sizing chart provided by the manufacturer to ensure you're getting the correct fit.

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*B width is a medium (M) width; this is the regular or average width. *A, AA, AAA, AAAA are narrow widths, the more "A's" the narrower the shoe, every A decreases the width by ? inch. Sometimes this is designated by S" for slim (equal to A or AA), or SS for Super Slim, equivalent to AAA or AAAA.read more >>