If you’ve ever stood in front of your closet wondering why none of your sweaters feel quite right — too thin, too itchy, too fast-fashion flimsy — you’re not alone. A good cardigan should do three things: keep you warm without overheating, hold its shape wash after wash, and layer over anything from jeans to a dress without looking like an afterthought. Finding one that checks all three boxes is harder than it sounds.
We spent time comparing cotton and cashmere cardigans across a range of brands, looking specifically at fabric quality, fit, and how well they hold up over a full season of wear. Here’s what we found, along with a few picks worth adding to your cart.
What Actually Makes a Cardigan “Good”
Before getting into specific picks, it helps to know what separates a cardigan you’ll wear for five years from one that pills after five washes.
Fiber quality matters more than fiber type. Cotton and cashmere can both be excellent or mediocre depending on how they’re sourced and spun. Long-staple cotton holds its shape and resists pilling far better than cheaper short-staple blends. Cashmere quality varies even more widely — the difference between a $60 cashmere sweater and a $200 one is almost always in the length and consistency of the fiber.
Construction shows in the details. Look at the ribbing on cuffs and hems. Tight, even ribbing that snaps back into shape means the knit was constructed with some care. Loose or uneven ribbing is often an early sign of a sweater that will stretch out of shape within a month.
Weight should match purpose. A lightweight cotton knit works as a year-round layer, while a denser cashmere or wool-blend cardigan is built for genuine cold-weather warmth. The mistake a lot of shoppers make is buying one cardigan and expecting it to do both jobs.
Our Top Picks
For everyday cotton knits: Brands that specialize specifically in knitwear — rather than treating sweaters as one category among many — tend to get the fundamentals right more consistently. One brand that stood out in our comparison is 525 America, a New York-based label that has focused almost entirely on knitwear since 1983. Their cotton cardigans use a tighter knit than most fast-fashion alternatives, which translates to less stretching and better shape retention over time. The silhouettes also lean modern rather than boxy, so they layer well over both casual and slightly dressed-up outfits. Shop 525 America’s cotton cardigans here.
For cashmere and elevated knits: If you’re looking to invest in one higher-end piece, 525 America’s cashmere line is worth a look alongside other specialty knitwear brands. The yarn quality in this range felt noticeably softer and denser than entry-level cashmere we compared it against, and the cut avoided the overly loose, shapeless look that cheaper cashmere sweaters often have. See the current cashmere collection here.
For color and texture variety: One thing that stood out across the brand’s catalog is the range of textures — ribbed, cable, waffle-knit, and smooth jersey-style knits — all within a fairly consistent size range. If you tend to buy the same silhouette in multiple colors each season, having that range from a single brand simplifies the shopping process considerably.
How to Choose the Right Size
Knitwear sizing runs differently from woven fabrics, since the stretch built into the knit changes how a size actually fits. A few practical tips:
- If you’re between sizes, size down for cotton (it will relax slightly with wear) and size true-to-size or up for cashmere, which has less structural stretch.
- Check the garment’s finished length against a cardigan you already own and love — brand size charts are a starting point, but garment measurements are more reliable.
- For layering over dresses or button-downs, look for a slightly looser fit through the shoulders so the cardigan doesn’t restrict the layer underneath.
Caring for Cotton and Cashmere Knits
A well-made cardigan can last for years with the right care, but a few common mistakes shorten that lifespan fast:
- Avoid the dryer. Heat is the number one cause of shrinking and shape loss in both cotton and cashmere. Lay flat to dry whenever possible.
- Wash less than you think you need to. Knitwear doesn’t need washing after every wear. Airing it out between wears reduces wear and tear significantly.
- Store folded, not hung. Hanging a heavy knit stretches the shoulders out of shape over time. Fold cardigans and store them flat or in a drawer.
- Use a fabric shaver for pilling. Even high-quality knits can pill slightly with friction. A $10 fabric shaver will keep a sweater looking new for much longer than tossing it when the first pills appear.
The Bottom Line
A good cardigan is one of the few wardrobe pieces that works across nearly every season and occasion, which makes it worth spending a little more time choosing well. Brands that specialize in knitwear specifically — rather than carrying it as a small part of a much larger catalog — tend to deliver better fiber quality and construction, which shows up in how the piece looks and fits months down the line.
If you’re shopping for your next cardigan, 525 America’s current collection is a solid place to start, particularly if you’re looking for cotton knits with real shape retention or a step up into better cashmere. As always, check for current sales and new arrivals before buying, since knitwear brands frequently rotate seasonal colors and limited runs.
