The fit Designed to be fitted throughout. Customers say this style runs true to size. See our size & fit guide. The model is wearing a size XS and is 5'10", 25" waist, 34.5" hips, 31" bust. The details Non-adjustable straps, mock neck. Side ruching. Cotton Cinch is a medium weight knit jersey stretch fabric with a soft hand feel made with 88% organic cotton, 12% spandex. Machine wash cold, do not bleach, tumble dry low, do not iron, do not dry clean. More on fabric & care.