welded mesh concertainers is a collapsible wire mesh container with a heavy duty geotextile liner. Open in up and use a front end loader to fill it with sand (dirt or gravel) and you have a protective barrier to protect personnel and equipment from enemy fire (or bombs).

And also,the sections of HESCO are being linked together and filled with sand to create a flood barrier from the rising waters.

HESCO barrier specification:

Material: galvanized welded mesh, spring with other fittings, can be filled with sand, earth, cement, stone. Can be used in separate cell or some cells joint together.
Wire diameter: 4mm-5mm
Mesh opening size: 50mm-75mm
Panel size: The hesco Barriers come in a variety of sizes. Most of the barriers can also be stacked, and they are shipped collapsed in compact sets. Example dimensions of typical configurations are 4'6" x 3'6" x 32' (1.4m x 1.1m x 9.8m) to 7' x 5' x 100' (2.1m x 1.5m x 30m)., it also can be customized according to customer's requirement.
Geotextile: in heavy duty non-woven polypropylene, 300-400g/m2.
Finish: hot dipped galvanized, electro galvanized

Packing: wrapped with shrink film or packed in pallet.

Features
Easy to handle and install
High tensile and anti-impact capability
Long life, regular use
Can be filled with sand, earth, cement, stone.