Check out How to Password Protect WordPress Content based on Levels for more information.

• Input ppwp_access_levels to unlock Clothing category. Accessories category will be unlocked too.
• Input password_level1 to unlock Hoodies category. Accessories and Clothing categories will be unlocked too.
• Input password_level2 to unlock Tshirts category. These other categories including Hoodies, Accessories, and Clothing will be unlocked too.

Setup from the admin dashboard