A polo-lapel sweater puts its collar in view even when the body is under an open jacket. The decision is whether you want that lapel to be the outfit’s main neckline or to fit beneath another collar without crowding it.

Place the lapel before the jacket

Try a polo-neck knit you own with the jacket you plan to wear. Leave the jacket open to see the neckline alone, then close it and check for folded fabric at the throat. The MAXCT listing offers Khaki and Navy Blue, with M–XL chest 110/113/116 cm, shoulder 59/60/61, sleeve 53/54/55 and length 65/66.5/68. Compare your reference knit at these points. The chest changes only 3 cm per size, so a larger label may alter body length and shoulder more visibly than it solves a tight base layer.

The source lists 100% acrylic but no lapel depth, button or placket detail, fabric weight, or stretch figure. Ask for a close front image of the selected colour before assuming the collar can be fastened or folded in a particular way. A plain trouser would let the neckline and knit texture carry the outfit; that is a styling suggestion rather than a fit or comfort test.