As indicated in a previous answer to you, clothing can only be deducted if it cannot be used outside of the work environment.
If you are purchasing clothing for because you are repurposing them into a new product, then they would be considered as part of the manufacturing or fabricating process. Such purchases would be considered as part of your inventory until used for the end product.
Here is a link which includes information for manufacturing deductions: https://www.irs.gov/publications/p334