The color-block button cardigan gives a front length for every S–XL size. That number decides where the open edges and button line meet your usual top. Check the hem position before using the bust figure as a shortcut for a comfortable buttoned fit.

Mark the front hem on a layer you own

Place a tape from the shoulder point of a cardigan you wear to its front hem. The listed front lengths are S 17.9 in, M 18.3, L 18.7 and XL 19.1. Mark the candidate length against the waistband of the trousers or skirt you plan to wear. Ask where the seller starts the front-length tape and whether the back hem has the same drop; the page reports front length only. This makes a cropped-versus-waistband choice you can see without guessing from a model photo.

Test the closed and open states separately

The bust column rises from 39 in at S to 43.7 in at XL. Check whether those are finished cardigan circumferences measured with buttons closed. Lay your reference cardigan over the top you intend to wear and measure it closed without pulling the placket apart. Then open it and note how much of that top remains visible. Ask for button spacing, hem width and a closed-front photo in the chosen size; a bust number cannot show gaping near a button.

Balance shoulder and sleeve

The shoulder entries run 20.3–21.5 in, while sleeves run 17.6–18.7 in. A wider shoulder can move the sleeve start outward, so compare both measurements together against your reference layer rather than adding inches to sleeve length alone. The listing calls the fabric slightly stretchy and names 65% polyester and 35% acrylic, but gives no measured stretch or color-block layout for each color. Green, Camel, Dusty Pink and Cream are selectable; confirm the actual block placement if it affects your outfit.