An athletic wear comprising flexible clothing fabrics (F 1, F2), wherein the athletic wear is formed of a first flexible clothing fabric and a second flexible clothing fabric, the elastic modulus of the second clothing fabric along a waistline is larger than the elastic modulus of the first clothing fabric along the waistline, the crotch and the circumference of the lower part of the pelvis (Bh) in the wear are covered with the first clothing fabric, the circumference of the upper part (Bhu) of the pelvis (Bh) in the wear is covered with the second clothing fabric to form a belt-like first belt part, wherein the first belt part comprises essentially continuously: a belt front part covering a front surface of the upper part of the pelvis (Bh), a belt back part covering a back surface of the upper part (Bhu) of the pelvis (Bh), and a pair of belt side parts each covering a side surface of the upper part (Bhu) of the pelvis (Bh), the belt front part, the belt back part and the belt side parts are set individually to four regions into which the first belt part is equally divided in a circumferential direction, the upper edge line of the first belt part is sloped downward from the belt side part toward the center of the belt front part, the upper edge line of the belt front part is arranged in a level of one of the upper edge of the pelvis (Bh) and the vicinity thereof, avoids essentially covering an area higher than the pelvis (Bh) and avoids essentially covering an area higher than the upper edge line of the belt back part, characterized in that the center of the upper edge line of the belt back part is arranged in a region that is 4 cm to 6 cm higher than the center of the upper edge line of the belt front part, the first belt part is formed so that the virtual back center line vertically dividing the belt back part into two parts is in a region that is 4 cm to 6 cm on an average higher than the virtual front center line vertically dividing the belt front part into two parts, the elastic modulus of the first clothing fabric along the waistline is set from 0.3 to 3.0 N/cm, the elastic modulus of the second clothing fabric along the waistline is set from 3.0 to 14 N/cm, the value computed by subtracting the elastic modulus of the first clothing fabric from the elastic modulus of the second clothing fabric is set from 2.7 to 13.7 N/cm, the upper edge line of the belt back part is arranged, in a part of the sacrum (Bs), at one of the upper edge of the sacrum (Bs) and the vicinity of the upper side of the sacrum (Bs), and in both sides of the sacrum (Bs), the upper edge line of the belt back part is arranged at one of the upper edge (Bhu) of the pelvis (Bh) and the vicinity of the lower side of the pelvis (Bh). a belt front part covering a front surface of the upper part of the pelvis (Bh), a belt back part covering a back surface of the upper part (Bhu) of the pelvis (Bh), and a pair of belt side parts each covering a side surface of the upper part (Bhu) of the pelvis (Bh), the belt front part, the belt back part and the belt side parts are set individually to four regions into which the first belt part is equally divided in a circumferential direction, the upper edge line of the first belt part is sloped downward from the belt side part toward the center of the belt front part, the upper edge line of the belt front part is arranged in a level of one of the upper edge of the pelvis (Bh) and the vicinity thereof, avoids essentially covering an area higher than the pelvis (Bh) and avoids essentially covering an area higher than the upper edge line of the belt back part, characterized in that the center of the upper edge line of the belt back part is arranged in a region that is 4 cm to 6 cm higher than the center of the upper edge line of the belt front part, the first belt part is formed so that the virtual back center line vertically dividing the belt back part into two parts is in a region that is 4 cm to 6 cm on an average higher than the virtual front center line vertically dividing the belt front part into two parts, the elastic modulus of the first clothing fabric along the waistline is set from 0.3 to 3.0 N/cm, the elastic modulus of the second clothing fabric along the waistline is set from 3.0 to 14 N/cm, the value computed by subtracting the elastic modulus of the first clothing fabric from the elastic modulus of the second clothing fabric is set from 2.7 to 13.7 N/cm, the upper edge line of the belt back part is arranged, in a part of the sacrum (Bs), at one of the upper edge of the sacrum (Bs) and the vicinity of the upper side of the sacrum (Bs), and in both sides of the sacrum (Bs), the upper edge line of the belt back part is arranged at one of the upper edge (Bhu) of the pelvis (Bh) and the vicinity of the lower side of the pelvis (Bh).