This paper is related to clarify the physiological functions of sports wear which has effects on the physiology of the players at warming up. Three combinations of upper and lower garments in sports wears were selected. Two volunteer women students with standard physical conditions participated in this experiment. They drived the bicycle ergometer at 100 r.p.m. with 1.5 kp load. The change of skin temperature at various parts of body, perspiration, pulse rates and subjective responses for comfort during exercises were measured.
　It was found that putting on the following sports wears in right order was best of three combinations at 21±1℃, 60%RH; upper garments: semi-sleeve T shirt (knitted fabric, cotton 100%) over semi-sleeve T shirt (knitted fabric, nylon 100%), lower garments: track pants (plain woven fabric, cotton 100%) over dancing tights (knitted fabric, nylon 100%), and foot cover (knitted fabric, 100% acryle) over socks (nylon 100%), foundations: brassiere for sports (cotton 100%), shorts (cotton 100%), tennis shoes.
　The heavier clothing at warming up is hot and sultry for player and he is suffered from fatigue at after gymnastics.
　On the other hand the thinner clothing at warming up is cold and chilly for player and he cannot feel to be relieved at after gymnastics. It is important to select the clothing conditions in right order and in proper clothing materials.

DESCENTE SPORTS SCIENCE Vol.5/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE