Our Lou Lou Rompers are your everyday go-to that make dressing baby a breeze. * functional buttons down front * rolled short sleeves and leg cuffs for gender neutral style * snaps for easy changes * lightweight silky soft fabric Hassle-free one piece, exceptionally cute. Sizes: Newborn-3 Month: 6-12 pounds // 18-22” long 3-6 Month: 12-16 pounds // 22-27” long 6-12 Month: 16-20 pounds // 26-30” long 12-24 Month: 20-30 pounds // 29-33” long 2/3T : 28-34 pounds // 32-40” long 4/5 : 37-45 pounds // 39-45" long