The plaid turtleneck sweater is described as slim-fitting and has a narrower chart than many loose knits: M lists 94 cm chest and 39 cm shoulder, XL 102 and 41. The useful question is whether it should sit alone or under a jacket you already own.

Check the sweater and the outer layer

First compare a close-fitting knit at chest, shoulder and sleeve. The chart moves chest 94/98/102 cm, shoulder 39/40/41, sleeve 59/60/61 and length 64/66/68 from M to XL. These are listing measurements, not body-size recommendations. Then put your reference knit under the jacket you would use and check whether the combined layers still allow your usual arm movement. Sizing this sweater up for chest adds little at the shoulder, so ask for a flat garment measure if that seam is the issue.

Apricot and Grey are selectable; use the current image to see where plaid crosses the neckline before pairing it with a patterned coat. The listed blend is 70% polyester, 15% nylon and 15% acrylic. The page does not give knit weight, stretch recovery or collar circumference, so it cannot establish warmth, compression or how high the neck will sit on you.