The Stout Shield is roughly pentagonal in shape and has smooth, curved bottom edges. It is predominantly yellow, though upper half of the face of the shield sports three sky blue rectangles arranged side-by-side, while the lower half sports one sky blue rectangle, this one horizontal and curved upward.
There is a small, white circle on the bottom of each of the three upper rectangles. There are also three large, black screws on the bottom and the top two corners of the shield. It is a palette swap of the Adamant Shield.