Coach X champion size small ( but runs big)

Coach X Champion size XS I’m a size large and it fits me so I’m not sure on the sizing. I have measurements in the photos. Body- 70% cotton 30% polyester Knit Rib 57% cotton 38% polyester 5% elastane Leather trim Exclusive of decoration Dry clean only Anything you can think of or anything I missed please ask P.s I have worn this