How to make stiff bag straps softer and more comfortable to wear?

To make stiff bag straps softer and more comfortable, you can try padding them with foam or fabric, which adds cushioning. Additionally, using a strap cover made of a softer material like fleece or neoprene can enhance comfort. Regularly flexing and bending the straps can help break them in, making them more pliable over time. Lastly, applying a fabric conditioner or leather conditioner (if applicable) can also help soften the material.