The Duna line perfectly reproduces an extraordinary phenomenon of nature, the ever-changing formation of the dunes in the Maranhenses sheets. By the action of wind and rain, sand and water move and inspire those around.
| Item | Duna |
| Length (cm) | 50 |
| Width (cm) | 75 |
| Thickness (mm) | 25 |
| Weight (kg)/m2 | 37.5 |