A loose V-neck college sweater can frame a shirt collar in a way a crew neck cannot. If you plan to wear a shirt beneath it, the decision is partly about visible layers and partly about room at the shoulders; a large chest number alone does not establish how the shirt will sit.

Plan the visible layers

Try a shirt you own under a V-neck knit that you like. Note how much collar and cuff remain visible, then measure the knit across the chest, shoulder and sleeve. This item lists M/L/XL chest 130/134/138 cm, shoulders 58/59/60 cm and sleeves 61/62/63 cm. The chest changes by 4 cm per size while the shoulder changes by 1 cm. If your reference shirt bunches at the shoulder, selecting by chest alone will not settle that problem. The page gives no V depth, so ask for a front measurement or compare a photo of the selected Green or White option.

For an outfit, a plain shirt and unpatterned trousers would let the V-neck line stand out; wearing it without a collared layer gives a simpler neckline. Those are styling suggestions, not claims about fit in use. The listing gives 41% acrylic, 25% nylon, 18% polyester and 16% viscose, plus a 1–3 cm manual-measurement allowance. It does not describe fabric thickness or stretch, so keep your shirt-layer plan conditional until the chosen size is checked.