How to Choose a Cardigan
Updated June 2026Independently researchedNo paid placement.
The best cardigan for you balances fit, material, and style to match your body type, climate, and daily needs. Start with a natural fiber like merino wool or cotton for breathability, choose a length that flatters your frame, and pay attention to collar and button details. Avoid synthetic blends if you want long-term comfort and easy layering.
What fit should you look for in a cardigan?
A cardigan’s fit is the single most important factor. It should skim your torso without pulling or sagging. The shoulders should align with your natural shoulder line, and the sleeves should end at your wrist bone. A classic cardigan is neither tight nor boxy, it leaves just enough room for a shirt or a thin sweater underneath without looking sloppy. If you plan to layer over dress shirts or turtlenecks, a slightly relaxed fit through the chest and arms works best. For a more modern, tailored look, look for a cardigan with a slimmer cut, often called a “trim fit.” Avoid anything that bunches around the waist or flares out at the hem, as that can throw off your silhouette. Many well-regarded brands like J.Crew, Banana Republic, and Pendleton offer consistent sizing, but always check owner reviews for shrinkage notes, especially with wool cardigans.
Which material is best for your climate and lifestyle?
Natural fibers breathe and regulate temperature far better than synthetics. For year-round wear, a cotton or cotton-linen blend cardigan is light, washable, and comfortable in mild weather. Merino wool is a step up in warmth and moisture-wicking, making it ideal for transitional seasons or cooler offices. Cashmere is soft and luxurious, but it’s less durable and requires careful hand washing or dry cleaning. If you live in a damp climate or tend to run warm, avoid heavy acrylic or polyester blends, they trap heat and can feel clammy. For cold winters, a thick wool or wool-cashmere blend cardigan with a shawl collar provides serious warmth. Just be mindful that pure wool can be itchy against bare arms; a cotton or merino lining on the inside of the collar can help. Look for reputable mills and brands known for yarn quality, such as Scottish knitwear houses or Portuguese manufacturers.
How do you choose the right length?
Cardigan length dramatically changes how it works in your wardrobe. A hip-length cardigan (ending around the top of your pants pockets) is the most versatile. It layers well over almost anything and works for both casual and smart-casual outfits. A longer, thigh-length cardigan can be a stylish statement piece, especially in a fine gauge, but it can overwhelm shorter frames if not cinched with a belt or worn open. Shorter cardigans that hit at the waist are popular for a retro or cropped look, but they require high-waisted pants or skirts to avoid a disjointed silhouette. Your best bet is to go with a length that aligns with your torso proportions. If you’re unsure, stick with a classic hip-length cardigan in a neutral color. It’s the safest, most flattering option for most body types.
What style details matter most?
The collar is the first thing people notice. A shawl collar gives a casual, cozy feel and is great for open-front styles. A notched or V-neck collar is more tailored and works well with buttoned cardigans, especially in finer fabrics. Buttons themselves deserve attention, horn, wood, or dark metal buttons add character, while plastic buttons can cheapen an otherwise good cardigan. Pockets are a practical detail, but they should be flat and not add bulk. Patch pockets are common on chunky knits, while welt pockets are more discreet and suit finer gauges. Ribbing at the cuffs and hem should be snug but not tight. A well-made cardigan will have clean seams, even stitching, and a smooth finish on the inside. Avoid cardigans where the buttons pull or gap when closed, as that indicates poor construction or a bad fit for your chest.
How should you care for your cardigan?
Cardigans, especially in natural fibers, require gentle care to keep their shape. Always check the care label first. Many wool and cashmere cardigans should be hand washed in cool water with a mild detergent, then laid flat to dry. Machine washing can shrink or felt wool, and machine drying is almost always a bad idea. For cotton or synthetic blends, a cold, gentle machine wash with like colors is fine, but still air dry flat. To prevent pilling, turn the cardigan inside out before washing and use a fabric shaver to remove fuzzballs when they appear. Store cardigans folded, not hung, to avoid stretching the shoulders. A cedar block or lavender sachet can deter moths without harsh chemicals. With proper care, a good cardigan can last years and become a staple you reach for again and again.
Can you wear a cardigan for formal or dressy occasions?
Yes, but the style and fabric matter. A fine-gauge merino or cashmere cardigan in a solid neutral (navy, charcoal, black, cream) can easily replace a blazer in a smart-casual or business-casual setting. Pair it with a button-down shirt, chinos or tailored trousers, and leather shoes. Choose a cardigan with a V-neck and slim fit, and avoid chunky knits or bold patterns for more formal events. For dressier occasions, go for a cardigan with a smooth, even weave and subtle details like mother-of-pearl buttons or a clean shawl collar. Make sure it’s long-sleeved and properly hemmed. Avoid cardigans with zippers, hoods, or oversized pockets if you want a polished look. While a cardigan will never replace a tailored suit jacket, it can bridge the gap between casual and formal comfortably.
Frequently asked questions
How should a cardigan ideally fit?
It should be slim but not tight through the chest and shoulders, with sleeves ending at your wrist bone and a hem that falls around your hipbone. When buttoned, the fabric should lie flat without pulling at the buttons or gaping between them.
What’s the difference between a shawl collar and a notch collar?
A shawl collar is a continuous rolled band that extends from the back of the neck down to the placket; it’s cozy and casual. A notch or V-neck collar is a separate piece that creates a sharp V shape; it’s more structured and works better with dress shirts.
Are cardigans still in style in 2025?
Absolutely. Cardigans have been a menswear and womenswear staple for decades, and they remain a versatile layering piece. Oversized and cropped cardigans trend in and out, but classic fits in neutral colors are timeless.
Can you machine wash a cardigan?
Only if the care label explicitly says so. Cotton and synthetic blends can often handle a gentle cold cycle inside out, but wool and cashmere should be hand washed or dry cleaned. Always lay flat to dry to avoid stretching.
What length cardigan is most flattering?
For most people, a cardigan that hits at the hip (around the top of your pants pockets) is the most universally flattering. It works for layering without overwhelming your frame. Short or long cardigans can be stylish, but require more careful styling.
How do I prevent my cardigan from pilling?
Wash it inside out on a gentle cycle, avoid fabric softener, and lay flat to dry. Use a fabric shaver or sweater comb to remove pills gently. Choosing high-quality fibers with longer staples, like fine merino or long-staple cotton, also reduces pilling over time.