The half-collar long-sleeve top lists S through 5XL and provides an armhole figure in addition to shoulder, bust, sleeve and length. That extra column matters if a familiar top has enough room across the chest but feels tight around the upper arm. The published chart does not explain how its armhole was measured, so use it to frame a comparison rather than treating it as a body-size guarantee.

Start with the upper-arm opening

At S, the chart lists a 95 cm bust, 43.5 cm shoulder, 33.5 cm armhole and 59.25 cm sleeve. At 5XL those numbers are 130, 54, 44 and 64.5 cm. If you own a top whose bust is comfortable but whose armhole binds, lay it flat and measure the opening using a method the seller can confirm for this item. Then compare the shoulder and sleeve in the same row. Moving up several sizes changes the whole garment, not just the upper sleeve.

The source says the top is 90% polyester and 10% spandex, but supplies no measured stretch range. It also lists a half collar without a neck-opening circumference. A shopper concerned about pulling it over the head should ask for the relaxed opening and how it fastens, rather than assuming that the bust or fabric blend answers the question. The page says manual measurements may differ by about 2 cm; ask whether the chart represents finished garment dimensions before using a body measurement as a direct target.