Each bag is hand-sewn with tight seals at each joint to protect the Mammutico blocks from sun and rain. The top cover overlaps the sides of the bag and is held in place by durable and strong velcro closures.
We have developed an effective method to stiffen the walls of the bag by inserting only 4 blocks. As a result, the blocks can be packed alone. The bag has long side straps, which can be used to carry the filled bag (20 kg) for one person to handle, and shorter ends of the bag for easy carrying by two persons.
The width of the bag is 55 cm, which allows free passage through a standard door.