We receive many inquiries about the old IBX-16 gloves in 16oz size. Please note that we discontinued that model years ago, and there are no plans to bring it back.
Currently, our gloves factory in Kazo, Japan, only produces gloves up to 14oz size. You can check them out here.
If you're specifically looking for 16oz gloves for sparring, we have some great alternatives that might interest you: 16oz gloves.