When we got my wife, Rachel, this shirt, it fit by stretching very very tightly across her. Now it actually fits. So do these pants we just picked up for her, which she is enjoying modeling. She lost over a hundred pounds over the course of a year through SMART dieting and exercise. Watching her calories, avoiding sugary drinks, preferring to get her calories from food. No gimmicks. She's rightly proud of herself.
She tries on my cat-eared bowler here, with its added hatband and my steampunk goggles, as seen below.