Size Chart Romper (0-3Months):Bust:9.4";Length:19.7" (3-6Months):Bust:9.8";Length:21.6" (6-12Months):Bust:10.2";Length:23.2" (12-18Months):Bust:10.6";Length:24.4" Pants Set (18-24Months):Bust:9.4";Tops Length:13.5";Pants Length:17.0" (2T) 2-3Years:Bust:10.2";Tops Length:14.1";Pants Length:18.9" (3T) 3-4Years:Bust:11.0";Tops Length:15.3";Pants Length:20.8" (4T) 4-5Years:Bust:11.4";Tops Length:16.5";Pants Length:22.8" (5T) 5-6Years:Bust:11.8";Tops Length:17.7";Pants Length:24.8" (6T) 6-7Years:Bust:12.6";Tops Length:18.9";Pants Length:26.3" Model Shows MATERIAL: Made of smooth cotton. Breathable and sweat-absorbent to keep little ones comfortable inside and outside on Christmas. Machine wash recommended with cold water like ordinary clothes. SIZE: The playsuit for 3 Months, 6 Months, 9 Months, 12 Months. The pullover outfit for 18-24 Months, 2T, 3T, 4T, 5T, 6T. Please check the size detail on description before purchasing the Christmas clothing for your little baby boys and girls. DESIGN: Adorable one unisex piece Xmas theme baby romper with hat or Christmas pullover shirt + pants. Classic design for your babies’ Christmas. Nice to share photos of your infants to celebrate their Christmas! Occasions: Suitable for Christmas party, Christmas celebration, Christmas photography, Christmas themed party, infants' 1st Christmas outfit, kids Christmas gifts, Christmas baby shower, big brother / sister & little brother / sister Christmas matching outfit, great for daily wear at home on holiday! INCLUDED: 1 x onesie or 1 x pants set. Sold separately. If you want to buy two matching clothes for your babies, you need to order each clothes separately. Merry Christmas!