SHEIN Zipper Fly boyfriend jeans

Shein jeans . NWOT. Never used just tried on , I like them a lot but since I gained weight now I need a 30/31 in this style. My butt is squished in these. No stretch) My measurements: Waist: 31 1/2 Hips: 41 1/2 Inseam I usually use is 29/30 ( im 5’5) All my jeans are 9/10