SIZE CHART: SIZE 73/6-9 months:suitable for height 66-73cm; SIZE 80/9-18 months:suitable for height 73-80; SIZE 90/18-24 months:suitable for height 80-90cm; SIZE 100/24-36 months:suitable for height 90-100cm; SIZE 110/36-48 months:suitable for height 100-110cm; SIZE 120/48-60 months:suitable for height 110-12cm; Top size: SIZE 73: length 33.5cm, 1/2 chest 28.5cm. SIZE80:length 36cm, 1/2 chest 30cm. SIZE 90:length 38.5cm, 1/2 chest 31.5cm. SIZE 100:length 41cm, 1/2 chest 33cm. SIZE 110:length 44cm, 1/2 chest 34.5cm. SIZE 120:length 47cm, 1/2 chest 36cm. Pants size: SIZE 73: length 20.5cm, waist 38cm; SIZE80:length 22cm, waist 40cm; SIZE 90:length 23.5cm, waist 42cm; SIZE 100:length 25cm, waist 44cm; SIZE 110:length 26.5cm, waist 46cm; SIZE 120:length 28cm, waist 48cm; Material: Color block baby boy summer clothes set made of cotton blend, comfy breathable fabrics, not irritate baby's skin; cool summer boy outfits. Fashion Design: sleeveless tops tee shirts and elastic shorts , dress up your little baby boy with this trendy outfits make him looks so cool and fashion. Occasions: Great for summer casual daily wear, playwear, baby vacation clothes, toddler vacation essentials, beach clothes, 4th of july gift, church, baby shower, baby goft outfit, baby photography outfits, birthday gift, party or any occasions Package included: 2PCS /3PCS/ 4PCS baby boys summer clothes (baby top ,shorts, socks and bag); Please reference our Size Chart on the image when ordering