Really cute sweat suit... half shirt long sleeve!

It's a half shirt long sleeve hoody sweat suit soo cute it's white with peach stripes on hoody and long pants with fold over waist with peach stripes! Only wore once it has a lil stain on the pants and two lil ones on sleeve.....I never tried doin any stain remover on it I know it will come out! ??Its a simple lil stain a lil oxi clean and it will be brand new!! ??