Best women's polka dot cardigans

Start with the Draper James Polka Dot Cardigan — the most classic of the lot: a cotton-rich knit (96% cotton), crewneck and a hip-length cut that layers over dresses or sits with jeans, and it keeps its shape better than the thin budget knits.

By what you're after:

• J.Crew merino polka-dot cardigan — finer and dressier; dry-clean only, so the office pick.
• Reformation Bernadette — relaxed wool, softer and more premium.
• Ganni — alpaca blend with logo buttons, if you want the statement piece.
• ANNIEWEAR reversible — two looks in one; good value.
• Hearthz / MEZZALL — thin open-front styles, including sizes up to XXL and beyond.
• Boden — pre-owned, so check the listing's condition notes.