Soft and smooth dress fabric - for your little girl to have a comfortable and beautiful wearing experience Ties on the back--if the dress is slightly big, however once you tie the sash it works just fine, still fit perfectly Smooth Zipper Back--Easy for putting on and taking off ...Soft and smooth dress fabric - for your little girl to have a comfortable and beautiful wearing experience Ties on the back--if the dress is slightly big, however once you tie the sash it works just fine, still fit perfectly Smooth Zipper Back--Easy for putting on and taking off, Duable for long time using Size 0 to 3 months: Chest: 16 (40.64 cm) Size 3 to 6 months: Chest: 17 (43.18 cm) Size 6 to 9 months: Chest: 17.5 (44.5 cm) Size 9-12 months: chest 18''(45.7 )Height: 28-30 (71.12 cm - 76.2 cm) - Weight: 18-24 lbs Size 12-18 months: chest 19'' (48.26cm)Height: 30-32 (76.2 cm 81.28 cm) - Weight: 22-28 lbs Size 24 months: chest 20'' (50.8cm)''Height: 32-34 (81.28 cm 86.36 cm) - Weight: 26 - 30 lbs Size 1T Height: 31 (78.74 cm) - Weight: 20- 26 lbs - Chest: 17.5 (44.45cm) Size 2T Height: 34 (86.36 cm) - Weight: 26 - 30 lbs - Chest: 19 (48.26 cm) Size 3T Height: 37 (93.93 cm) - Weight: 30 - 34 lbs - Chest: 21 (53.3 cm) Size 4T Height: 40 (101.6 cm) - Weight: 34 - 40 lbs - Chest: 23 (57 cm) Size 5 Chest: 23.5 (59.69 cm) - Waist: 22 (55.88 cm) Tea Length: 32 (81.28 cm) - Ballerina Length: 30 (76.2 cm) - Knee length: 26.5 (67.31 cm) Size 6 Chest: 24.5 (62.23 cm) - Waist: 22 (55.88 cm) Tea Length: 33 (83.82 cm) - Ballerina Length: 31 (78.74 cm) - Knee length: 27.5 (69.85 cm)