This is my favorite fabric. 95% Polyester 5% Spandex. That means this is super lightweight, soft against your skin and stretchy! Plenty of room. Style with your favorite white, black or blue denim or shorts. Shown wearing the small. I am 5’4 145 pounds with. 36” bust line to help. This is a loose fit as Umgee has a loose cut. S- 3X