Junior's Sizing. Approximately 30 inch inseam (inseam on Size 13 is approximately 29.5 inches). Front Rise (measured to top of waistband) is 7.5 inches for Sizes 0 to 3, 8 inches for Size 5, 8.5 for Size 7 through 11, 9.25 inches for Size 13, and 9.5 inches for size 15.