Seven7 Marilyn Boyfriend Jeans-size 4 fits like 6

Bought these Seven7 jeans new but are too big for me. I think they fit closer to a size 6 in the waist. Info from the website: Relax in our favorite sexy Marilyn Relaxed Boyfriend Jean. This boyfriend fit is versatile with a laid-back look and comfortable feel. It sits at the waist, with an easy fit through the legs, and finished with a rolled cuff hem. Authentic vintage inspired indigo denim for everyday comfort. MEASUREMENTS: 27 1/2" Cuffed Inseam, 30" Uncuffed Inseam FABRIC: 100% Cotton