1. UNIFORM LISTINGS WITH SIZE AND STOCK LEVELS
If you want to use the stock function, i.e. you have a limited supply of certain items and do not want to oversell, then you will need to list each size of each item as a different listing, e.g.
Click on the link to go to the Knowledge Base Article for UNIFORM LISTINGS WITH SIZE AND STOCK LEVELS for detailed instructions on this set up.
2. UNIFORM LISTINGS WITH SIZE OPTIONS AND CHOICES
If you do not need to monitor stock numbers, then you can use choices or options for sizing, e.g.
Another important consideration is price. If different sizes are priced differently, you will need to create different listings for the different price points, e.g.
Click on the link to go to the Knowledge Base Article for UNIFORM LISTINGS WITH SIZE OPTIONS AND CHOICES for detailed instructions on this set up.