To provide a garment capable of effectively assisting a wearer to keep a forward-bent posture of the pelvis while stretching the chest.

An underwear 1 has a pattern PA1 formed on a back surface part so as to cover the sacrum side of the gluteus maximus muscle so that an area corresponding to the sacrum is positioned in the inside. A patter PA2 is formed in a front face part of the underwear 1, so as to cover an abdomen circumference in a lower area in a front face part area, corresponding to the area where the pattern PA1 is formed. A pattern PB1 generating tensile force for widening the chest in wearing on both the shoulders is formed on the back surface part.