A clothing article having a cup part includes a main body cloth front part 11, a main body cloth rear part 12, and a main body cloth shoulder strap 14 that are formed only of an elastic material. The main body cloth shoulder strap 14 is continuously formed with the main body cloth front part 11 and the main body cloth rear part 12. The main body cloth shoulder strap 14 is larger in width and less prone to stretch at a main body cloth shoulder strap top portion 14a than at a main body cloth front part joint portion 15 and at a main body cloth rear part joint portion 16. The main body cloth front part 11 is less prone to stretch at its bust part, and the main body cloth rear part 12 is less prone to stretch at its center zone. The main body cloth rear part joint portion 16 is placed more inward than the main body cloth shoulder strap top portion 14a and the main body cloth front part joint portion 15.