the influence of skin friction on the perception of fabric texture and pleasantness (acceptability) was studied by exposing eight men to a sequence of environmental conditions: neutral (comfortable), hot-dry, hot-humid, and return to neutral. the air and dew point temperatures (t//a:t//d//b) of these conditions were 23:15 $degree$ c, 35:15 $degree$ c, 35:29 $degree$ c, and 23:15 $degree$ c, respectively; air velocity was 0. 05 m/s. during each condition, which lasted 20 minutes, six different fabrics (worsted wool, brushed cotton, cotton, silk, linen, and burlap) were slowly pulled across the subject's forearm. frictional force of fabric pull across the forearm and the subject's ratings of texture and pleasantness (hedonic) were recorded. arm skin temperature and skin wettedness were recorded continually. the conclusion is that moisture on the skin surface increases skin friction, which enhances perception of roughness and decreases the acceptability of clothing worn in hot environments. (edited author abstract) 23 refs