The manufacturer listed this as a size M, equivalent to 110, but it seems a bit small. Although I can't be certain, I'll label it as size 100. My child couldn't wear it because their chest is large, so it's almost unused. It's a very cute dress. You can layer it with other tops, making it wearable in winter, so I think it can be used except in midsummer. 【Brand Features】 marble SUD is a brand specializing in children's clothing, known for its adorable designs. 【Design】 This dress features a colorful floral pattern, perfect for spring and summer. The long sleeves make it suitable for cooler days. 【Size and Fit】 The size is M (equivalent to size 110 according to the manufacturer). My child couldn't wear it because their chest was too big. I also think the sleeve width isn't very roomy. I thought it might be better suited for children with a smaller build (this is my personal opinion). I think someone around 90cm tall could wear it for a long time if they fold up the sleeves. The fabric doesn't stretch. It can be put on and taken off with two buttons in the back. Please understand that I may have missed something during my amateur inspection. Please purchase with this in mind.