A cashmere cardigan earns its place in a fall wardrobe by doing double duty as both a sweater and a light outer layer. Striped, patterned or plain any style works layered over a shirt or alone over trousers, since the point of cashmere is that it looks finished without much styling. What matters most is choosing a fit close enough to layer under a coat but not so close that it restricts movement.

Once the shape is settled, color is where a cashmere cardigan can actually change an outfit. Dôen's Alesia Cashmere Cardigan leans into a strong aquamarine that works as the one saturated piece in an otherwise neutral look. Aritzia's London Wool Cashmere Cardigan takes the safer route, blending wool into the cashmere for a sturdier, more neutral piece that works closer to daily rotation. Both prove that a cardigan does not have to disappear into beige to feel like a considered choice. A bold color needs a plainer pairing below it, while a neutral one gives you more room to experiment elsewhere.

Pattern is the trickiest way to wear a cashmere cardigan, since a busy knit can start to look like a costume rather than a piece you reach for often. A patterned cardigan works harder when the rest of the outfit stays quiet, since the knit is already carrying the visual interest. If you are drawn to the Fair Isle route, let it be the only pattern in the outfit.

A cashmere cardigan is one of the few pieces that can move between a sweater, a light jacket and a layering piece without ever looking indecisive. The plainer crewnecks in this edit are the most practical starting point, while the colored and patterned versions reward someone who already has the basics covered. I would buy one dependable neutral before a bold color or a Fair Isle pattern, since the neutral gets worn more often and makes the rest of a fall wardrobe easier to build around. Fit matters more than any surface detail: a cardigan that is too snug loses the ability to layer, and one that is too loose loses the shape that makes cashmere worth choosing in the first place. If you take one thing away, it is that a good cashmere cardigan should be doing several jobs at once, not sitting in a drawer waiting for one specific outfit. Start plain, then build outward from there.