The black striped off-shoulder mini dress has long sleeves and a slim-fit description. Its S–L chart is more useful than a generic size label, but one column called “Shoulder Length” does not tell you where the off-shoulder edge will sit. You need to check the upper edge, sleeve reach and dress length as separate decisions.

Compare a dress you already wear

Use an off-shoulder dress or top that stays where you like. Record its relaxed neckline opening, where its upper edge rests on your shoulders, and its sleeve length along a clearly marked measuring path. Then measure a mini dress from the same upper-body point to its hem. These references let you ask useful questions about this listing, even though it does not publish neckline width or the construction that holds the edge in place.

In the source chart, S lists bust 28.35–29.92 inches, waist 25.2–26.77, shoulder length 12.2, sleeve length 27.17 and body length 29.53. L lists bust 31.5–33.07, waist 28.35–29.92, shoulder length 12.99, sleeve length 27.95 and body length 30.31. From S to L the listed sleeve and body length each rise 0.78 inch, while the shoulder column rises 0.79 inch. Those arithmetic changes are real chart comparisons; they do not reveal the neckline opening.

Resolve the undefined column

Ask MAXCT where “Shoulder Length” starts and ends and whether the bust/waist ranges describe the body or the finished dress. The source names a polyester-and-spandex blend but provides no measured stretch or neckline-grip details. A size that matches your waist may still need a different upper-edge fit. Confirm the measuring convention and upper edge before using the chart to choose S, M or L.