The white crewneck sweater is offered in M, L and XL. Its current gallery shows a plain pale round-neck top with long sleeves, worn alone in the product photos. If you want to put it over a shirt, compare more than the chest column: listed chest grows by 6 cm per size, while shoulder, sleeve and length each grow by only 2 cm. A larger size may change room around the torso more than it changes sleeve reach or hem placement.

Separate width from reach

M is listed at 116 cm chest, 55 cm shoulder, 59 cm sleeve and 65 cm length. L is 122/57/61/67; XL is 128/59/63/69. The 6 cm chest increases are three times the 2 cm steps in the other columns. The source says all dimensions were measured flat with about 1–3 cm manual variation, but does not specify whether chest is already a circumference or whether the sleeve starts at the shoulder seam. Confirm those methods before comparing it with a body measurement. The listing gives no fiber composition or fabric stretch measurement, so the photographed drape is not a substitute for those facts.

Compare two real ways you might wear it

First put on a crewneck you already like over a thin T-shirt. Measure its flat chest width, shoulder span, sleeve reach and back length. Note where its hem ends above your trousers. Ask MAXCT whether its chart uses the same measuring points. Then repeat the wear check with the collared shirt or thicker top you plan to layer under this sweater. If the extra layer binds at your arm or pushes up the hem, record that constraint rather than automatically moving up a size. The source provides no armhole or cuff measurements, and a 6 cm chest increase does not tell you how much either opening changes.

Consider a concrete hypothetical: your reference sweater fits the chest well but has sleeves that are 4 cm too short over your shirt. Moving from M to L in this chart adds only 2 cm of listed sleeve length, not 4 cm, while adding 6 cm at the chest. Even moving two rows to XL adds 4 cm of listed sleeve length but 12 cm of chest. That tradeoff may or may not match the silhouette you want. It is an arithmetic comparison, not a fit guarantee, because the chart method and measurement variation still need confirmation.

Decide the hem and care questions

Compare the 65, 67 and 69 cm listed lengths with your reference from the same starting point. A visible shirt hem can be deliberate, while a longer sweater hem may cover it; neither outcome is proven by the model photo. Ask for the fiber and care label if wash method or texture matters to you. Choose M, L or XL only after the chest, sleeve and hem checks agree with the layer arrangement you actually intend.