Pattern [pattern] Field for Product Feed

Required for products that vary by pattern

The pattern attribute describes the pattern or graphic on your product, such as “polka dot”, “striped”, or “paisley”. It is especially useful for apparel and other products where the design can influence purchasing decisions.

When to use

• Required for all products that vary by pattern.
• Optional for any product where the pattern is a key distinguishing feature and may influence buying decisions.

Format

• Type: Unicode characters (ASCII recommended)
• Limits: 0–100 characters
• Repeated field: No
• Schema.org property: Product.pattern

File format examples:

Minimum requirements

• Include the actual pattern or graphic design on the product.
• Submit a pattern for all products that vary by this attribute.
• Ensure all variants in the same group share the same item_group_id.
• Do not include unrelated attributes such as color, size, or material.
• Do not submit more than one value; only the first will be used.

Best practices

• Use clear, descriptive values that customers will understand.
• Avoid abbreviations or internal codes (e.g., use Polka Dot instead of plka).
• Only submit this attribute if relevant to your product.
• Do not submit placeholder values such as “n/a”, “none”, or “other”.

SEO Tip

Descriptive, accurate pattern values improve filtering in Shopping results and increase the chances of appearing in relevant variant searches. This can help boost click-through rates for apparel and design-focused products.

Official Source : https://support.google.com/merchants/answer/6324483