Thermal insulation is one property of clothing which becomes important as the environmental temperature changes.


1 clo (clothing) =

= 0.155 square meter °C per W =

= 0.18°C per kcal per square meter per hour, or °C ((kcal)^(-1)) ((square meter)^(-1)) ((hour)^(-1))



• A typical business suit = 1 clo.

• An arctic weather suit = 4 clo.


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