In order to clarify the effects of mean pressure on the compressive sensation of women's underwear, subject values obtained from a wearing test were analyzed with mean clothing pressure on a dummy. Total compressive sensation and comfort of long or half sleeve underwear were respectively related to the compression on the back, chest, abdomen, upper arm and forearm. In addition, they were related to the contact area and the mean pressure on the dummy. The values of feeling compression on the chest, back and upper arm of the long or half sleeve underwear were approximate, and were about 0.1 kPa. These values of mean clothing pressure were 0.046 kPa on the long sleeve type of women's underwear and 0.025 kPa on the short sleeve type. Furthermore, the significant equations for mean clothing pressure of underwear were obtained by the multiple regression method using the pressure of the chest and forearm.