The ruffle-trim cardigan is an open-front layer with half sleeves. Its chart is most useful when compared with a cardigan you already wear over the same type of top. Across S to 2XL, the listed bust rises from 37 to 48.4 inches, while length moves from 26 to 27.3 inches and sleeve length from 14 to 15.6 inches. The extra room and the lower hem do not change at the same rate.

Compare an open layer you own

Lay your reference cardigan flat and record its bust, sleeve length and body length using the same start and end points shown by the seller. The listed bust difference from S to 2XL is 11.4 inches, but the body length changes only 1.3 inches. If your current layer already ends where you want it, choosing a larger size for room over a top need not imply a much longer hem on this chart. Sleeve length changes 1.6 inches over the same range, so check the cuff separately.

The source calls these “product measurements,” but does not say whether its bust figure is a finished circumference, a doubled flat measurement or another convention. Ask before comparing it to your body circumference. It also omits shoulder and armhole measurements. Those matter when a half-sleeve cardigan goes over a sleeved top; a bust number alone cannot prove the upper arm will sit comfortably.

Decide what the front needs to do

The listing says open front and gives no fastening or overlap dimension. If you want a layer that closes across the chest, do not infer that coverage from the bust column. Compare the selected colour and ruffle placement in its option image, then check the size against your reference layer. The stated blend is 65% cotton and 35% polyester, with machine-wash-cold and tumble-dry-low care instructions; follow the garment label if it differs.