No infill required when you print. The depression that is scooped out in the centre is enough for a body soap, but may not be enough for a bar of cloth soap or dish soap. All the water drains off at the bottom. The soap bar doesn't stick to the dish.

In the photo, you can see my wife's expensive handmade herbal soap on my soap dish.

This is a remix from https://www.thingiverse.com/thing:398515