The insulating values of 7 kinds of woman`s Korean-styled clothes were examined on the instrumented copper mannequin standing upright under still air condition in a climatic chamber at 20℃ and 60% R.H.. Results obtained are as follows: 1) High correlation coefficients were found in both between total insulating values of clothing (IT) and total clothing weight, and between IT and total clothing thickness while no significant difference was found between total clothing weight and total clothing thickness. 2) It seems possible to predict the approximate insulating value of woman`s Korean styled clothes on still air condition by the total clothing weight.