Patent ID: 8240174

Claim:
An undergarment comprising a fabric having a woven structure, a knitted structure or a non-woven fabric structure, wherein the fabric contains a filament yarn A having a filament diameter of 10 to 1000 nm and a filament yarn B having a filament diameter greater than 1000 nm, and the filament yarn A is exposed on the side that contacts the skin, wherein the frictional resistance value of the side that contacts the skin is 150 gr or more as determined according to the measurement method described below: the frictional resistance value is the resistance value (gr) determined by placing a piece of silicone rubber on a horizontal table, arranging a head having a bottom surface area of 5 cm×8 cm, a height of 3 cm and a weight of 100 gr (0.98 N) on which a sample is affixed to the entire bottom surface thereof on the silicone rubber, and pulling the head in the horizontal direction at a rate of 100 mm/min with a tensile tester followed by determining the resistance value (gr) at that time.