How should a plaid waistcoat fit?

It should sit close over a shirt but still close over a thin knit. Check that the armholes do not bind and that the buttons do not pull across the chest.

Can I wear it on its own?

Yes. Buttoned over a camisole or worn alone as a top, it works for warm days; add a shirt or knit underneath in cooler weather.

Is it warm enough for winter?

Not by itself. It is a mid-layer, so wear it under a coat or over a sweater when temperatures drop.

What do I wear it with?

Denim, wide-leg trousers and midi skirts all work. Keep the rest of the outfit plain so the plaid stays the focus.

How do I care for a plaid waistcoat?

Check the label: wool blends usually need dry cleaning or a cold gentle wash, while cotton twill can be machine washed. Store it on a hanger to keep the shoulders in shape.