An easy wearing sportswear is provided to prevent a user from feeling pain in his/her waist while he/she exercises and to enable the user to take off and put on the sports wear easily by connecting the rear plates of the upper and lower clothes thereof. The lower clothes(100) of an easy wearing sportswear have an open structure wherein both sides portions(111,121) are separated and a first coupling unit is installed on the separated parts. The rear plate of the lower clothes of the sportswear(120) is integrally connected to the rear plate of the upper clothes of the sportswear. A second coupling unit is installed between the front plate of the lower clothes of the sportswear(110) and a front plate of the upper clothes of the sportswear(110'). The front plate of the lower clothes of the sportswear is longer than the rear plate of the lower clothes of the sportswear.
