These Shelter system can be carried by Two persons and Installed at locations where there is no vehicular movement, like hi altitude mountainous terrain. The Flat pack/ ISO shelter system are very versatile and light weight but provides the sturdiness of fixed installations and have a long 10 + years life. They are also dismantled and carried to another location with ease. 6 units can be packed in one ALS truck. They provide very good insulation against very low temperatures and are excellent for up to -40 to + 55 Degrees Temperatures.