The flag of Laos features a horizontal triband design. The aspect ratio is 2:3, which means it is twice as long as its width. The geometric properties and measurements are as follows:

1. Top band: Red; occupies 1/4 of the flag height; Hex color code: #CE1126
2. Middle band: Blue; occupies 1/2 of the flag height; Hex color code: #002868
3. Bottom band: Red; occupies 1/4 of the flag height; Hex color code: #CE1126

In addition, a white circle is positioned at the center of the blue band. The diameter of the circle is equal to 4/5 of the blue band's height.