Originally Posted by ibgary
What is " clo " ?
From Wikipedia article on Clothing Insulation:
1 clo = 0.155 K·m²/W
This is the amount of insulation that allows a person at rest to maintain thermal equilibrium in an environment at 21°C (70°F) in a normally ventilated room (0.1 m/s air movement). Above this temperature the person so dressed will sweat, whereas below this temperature the person will feel cold.