The style of the overalls is a looser fitting Korean version. Size chart: Size 3-6M: overall length, 51cm; Chest size, 34*2cm; suits for 0-6 months. Size 6-9M: overall length, 56cm; Chest size, 36*2cm; suits for 6-9 months. Size 12M: overall length, 61cm; Chest size, 38*2cm; suits for 9-12 months. Size 24M: overall length, 65cm; Chest size, 40*2cm. suits for 1-2y. Size 3T: overall length, 69cm; Chest size, 41*2cm; suits for 2-3y. Please note that the product only includes the clothes themselves. Due to different lighting and display factors, it may differ slightly from the actual product.