3D BASIC SYSTEM: padded mesh Back basic three densities Air Mesh. Made of 600 D Polyester PU. Nylon Diamond ripstop PU 330. Inside pocket carries documentation. External Tape reinforced to carry material. Higher elastic cord to place a garment. Flower Air Support System. Pads with hook and loop water pipe porterage. Anchors porterage of sticks. Front pocket. Inside pocket. Tapes load stabilizer. Side compression belts. Internal compartment for hydration bag. Daisy chain: frontal tape carrying objects. Two mesh side pockets. Elastic loops on iceberg. Epaulettes on "AIR MESH" 3 densities. Porta ax. Tensor chest.