The short stand-collar jacket has a four-size chart, but its last sleeve value breaks the sequence. M lists a 62 cm sleeve, L 63 cm and XL 64 cm; 2XL unexpectedly lists 60 cm. The same 2XL row has the widest shoulder and longest body. Do not silently replace the 60 cm figure with an extrapolated number.

Check the sleeve before sizing up

In the published rows, shoulder width rises 48, 50, 52 and 54 cm from M to 2XL, while body length rises 63, 65, 67 and 69 cm. Chest rises 120, 124, 128 and 132 cm. A shopper sizing up for chest or body length could still receive a shorter sleeve if the 2XL sleeve figure is correct. Measure a jacket you own from its shoulder seam to cuff, and ask for a fresh 2XL sleeve measurement made at that same point. A photo of the laid-flat sleeve next to a tape measure would resolve more than a generic size recommendation.

The listing states its measurements are taken flat with a possible 1–3 cm manual difference. That tolerance does not explain why a 64 cm XL sleeve becomes 60 cm in 2XL; the value needs direct verification. The model is listed at 172 cm wearing L, but neither arm length nor chest is supplied, so the model row cannot validate the 2XL figure. If the seller confirms 60 cm, decide whether the extra shoulder and chest room still suit your planned layer. Khaki and Black are the stated colours; choose the colour after resolving the size question.