To sell fashion on Amazon, you should meet the following requirements:
1. Register as a selling partner in the "Professional" programme for selling on Amazon.
2. Have an inventory of more than one product in this category.
3. Have a return address in the local country or offer free shipping.
4. Be able to provide localised customer support in the marketplace language in which the sale is intended.
For the product list, you should follow this style guide
to categorise your products. It's important to note that clothing is a category on Amazon that requires prior approval to sell.