Our sizes are Asian sizes,they are smaller than CA/US sizes.Please check our size chart below: (DO NOT refer to "Size Chart" link).Women's Robe Size Information:M=US size 2-4: Bust 44.88"(114cm), Length 34.25"(87cm)XL=US size 6-10: Bust 48.82"(124cm), Length 35.04"(89cm)XXL=US size 12-16:Bust 52.76"(134cm), Length 35.43"(90cm)Please choose robes with 7.8"-10"(20cm-25cm) LARGER at Bust than women's.Children's Robe(floral girl) Size Information:Size 4(Height 31.5"-35.5"/2-3 years): Bust 27.56"/70cm, Length 24.41"/62cmSize 6(Height 35.5"-39.5"/4-5 years): Bust 30.71"/78cm, Length 27.56"/70cmSize 8(Height 39.5"-43.2"/6-7 years): Bust 33.07"/84cm, Length 29.92"/76cmSize 10(Height 43.2"-47"/8-9 years): Bust 35.43"/90cm, Length 32.28"/82cmSize 12(Height 47"-53"/10-11 years): Bust 40.16"/102cm, Length 35.43"/90cmSize 14(Height 53"-58"/12-13 years): Bust 42.52"/108cm, Length 38.58"/98cmPlease choose the size based on the children's height first.