Ms Purple Girls' Pocket Sleeveless Ponte Dress 94% Rayon, 6% Spandex Machine wash cold, No Bleach, Only Gentle Cycle, Lay flat to dry Ultra soft jersey knit fabric provides the easiness of movement Size suggestion: Size XS -- 4~5 years old; Size S -- 5~6 years old; Size M -- 6~7 years old; Size L -- 7~ 8 years old;