The MATRIOSAC set is composed of two round bags, that fit into each other and fold to a compact size. Two sets for throwing can be stored, i.e. 2 throwlines and 4 throwbags. It is now equipped with a large pocket under the blue bag, for extra gear (cambium saver, throwbags, carabiners etc.).
Folding the bag holds the throwline flat at the bottom. Three straps with quick-release buckles hold the set folded together.
Once it is open, the MATRIOSAC is stable, held on the ground by the bags and accessories held in the bottom pockets that act as ballast. Its round profile means a lesser wind surface area. The bottom is reinforced and waterproof - it is therefore stronger and offers the gear a better protection against ground moisture.