The benefits of wearing a gaff can include:

1. Creating a more feminine appearance: A gaff can help to create a more feminine appearance in the genital area, which can be important for transgender women or crossdressers who wish to present a more feminine gender expression.
2. Reducing dysphoria: For some individuals, wearing a gaff can help to reduce feelings of dysphoria or discomfort associated with the appearance of their genital area. This can be an important part of their gender-affirming journey.
3. Comfort and security: A gaff can provide a more comfortable and secure fit for certain types of clothing, such as tight-fitting garments or swimwear. It can also help to prevent visible panty lines, which can be a concern for some individuals.
4. Confidence: Wearing a gaff can help to boost a person's confidence in their appearance, allowing them to feel more comfortable and at ease in their own skin.
5. Gender expression: A gaff can be an important part of a person's gender expression, allowing them to feel more authentic and true to themselves.

It's important to choose a high-quality gaff that fits well and is comfortable to wear, and to follow the care instructions carefully to ensure that it lasts for as long as possible.