Will fabric pens rub off of leather?

Fabric pens can potentially rub off leather, especially if the leather is smooth or has a finish that doesn’t absorb the ink well. To ensure better adherence, it's recommended to use leather-specific markers or pens designed for use on non-porous surfaces. Additionally, applying a fixative or sealant can help protect the design from rubbing off. Always test on a small, inconspicuous area first.