Mens - Bib Shorts
Color
Black/White
Black/Black
Navy/White
Navy/Navy
Olive Drab
Medium
Small
Extra Large
Extra Extra Large
Large
M
MAAP Alt_Road Cargo Bib Liner - Black
You included the snippet swatch.liquid with the name of a product option — 'Color' — that does not belong to your product.
Use {% include 'swatch' with 'name of your product option here' %}
Example: {% include 'swatch' with 'Color' %}
This is case-sensitive! Do not put in 'color' if your product option name is 'Color'.