Size Standards US Marketplace

To ensure your shoe sizes display properly on the website, we request you to include the following information for each size you submit.

Note: Amazon will only accept the U.S. size for any shoe on its U.S. marketplace. And though “7” or “7.5” may work, Amazon will not accept “seven” or “7 ½” as valid sizes.

1. Target gender: male, female, unisex, boys girls

Examples: Men 9, Women 6, Unisex Men 5/Women 7

2. Age range description: specific size ranges for the intended age group of your shoe  

Examples: 6-12 Months, 2-3 Years

The valid values for Age Range are:

  • Up to 2

  • Ages 3-5

  • Ages 6-8

  • Ages 9-10

  • Ages 10-12

  • Ages 13+

  • All Ages

3. Footwear size system: only U.S. shoe sizes will be shown in the U.S. marketplace; any non-US sizes must be sent together with the U.S. conversion (Amazon will not convert sizes for you)

Examples:  In the US, only US shoe sizes will be displayed on the website.

4. Footwear age group: 

Examples: infant, toddler, little kid, big kid, adult, all

5. Footwear size class: numeric, alpha, or age values or range

Examples: 

  • Numeric - will display values such as 7, 7.5, 8
  • Numeric Range - will display values such as 7-8, 8.5-9
  • Alpha - will display values such as One-Size, Small, X-Large
  • Alpha Range - will display values such as Small-Medium, Medium-Large
  • Age - will display values such as 6 Months, 2 Years
  • Age Range - will display values such as 6-12 Months, 2-3 Years

6. Footwear width: medium, wide, narrow

Shoe Widths can vary depending on the brand, retailer or country, and the same width designation can mean something different for Men’s Shoes than it does for Women’s Shoes. For example, a ‘B’ width for Women is Medium, but a ‘B’ width for Men is Narrow while a ‘3A’ width for Women is Extra Narrow [XN], but an Extra Extra Narrow [XXN] width for Men.

Accepted Shoe Width Values:

  • 3X-Narrow
  • XX-Narrow
  • X-Narrow
  • Narrow
  • Medium
  • Wide
  • X-Wide
  • XX-Wide
  • 3X-Wide

Examples: Men 8 Wide, Women 7 X-Narrow, 

7. Footwear size: values depending on footwear size class

Examples: Women 8, Men 8.5, Small, 6 Months

Certain circumstances will also require additional information.

1. Footwear gender: Required when footwear age group is set to Adult (women, men, both). This value may be the same as target gender.

2. Footwear to size: Required when foot size class is set to Numeric Range, Alpha Range or Age Range. This makes it possible to display a size range.

Examples: Women 7-8.

3. Unisex values: Required when target gender is set to Unisex and footwear age group is set to adult. You will have to provide the size for each gender.

Examples:,  Unisex 8 US Women / 6 US Men.

4. Brand-specific exceptions: For certain brands, like Converse, and Vans, you must provide the non-US size and the US conversion to successfully list your product. Specific Converse-brand shoes require you to use “men” as the gender and update bullet points with “Represented in Men's" sizing. For Women's, order 2 sizes up. For example, ‘4 M US Men’ is equivalent to ‘6 M US Women.’”

Examples: Men 7/Women 9

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