Summer 2026 Sweater Trends That Will Carry You Into The Fall Seamlessly

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When people think of summer fashion, they tend to imagine pool coverups, linen pants, and sun dresses. But a well-rounded summer wardrobe also includes dependable knitwear to keep you warm on breezy evenings when the sun goes down. Not only do these sweaters add texture and depth to your look, but many of them transition beautifully into fall.

Summer sweaters are different from your cozy winter knits, both in weight and material. Wool and cashmere blends are designed to stand up to freezing temperatures, while warmer weather calls for blends that feel lighter and more breathable. Start with the fabrics that you normally trust to keep you cool through summer. "Cotton, linen, silk, bamboo/tencel and rayon are all great options for summer knits," wrote one Reddit user. "I find that pure cotton is too warm for hot summer days, but mixed with one of the other above fibres, it works really well. Pure silk is amazing and cooler than any non-knit summer garment I own." In addition to materials, you can make smart styling choices, like opting for cardigans that can be worn open or draping a sweater over your shoulders.

One of summer's perennial dressing challenges is creating visual interest in your outfit without piling on heavy extra layers. Luckily, open-weave cardigans offer a way around this conundrum, because they're relatively lightweight. They're also the perfect unexpected texture to upgrade your style. The wider knit will naturally allow for more airflow, especially if you wear the garment open.

Open-weave sweaters can work well with existing summer wardrobes, and are one of the best ways to ace the summer crochet trend. "They can be layered over all sorts of different things," wrote one Reddit user. "I lived in Texas for 20 years and now live in Florida, so I do know how to dress in the heat ... I usually put them over top of a breezy sundress for a versatile, cool outfit."

Their easy versatility makes them handy for chilly summer evenings and early fall days alike. If your style is more boho, look for a sweater with more personality, like this Open Front Cardigan. Or you can still wear an open-weave sweater and get a crisp, modern effect if you reach for something with clean edges and a bold color, like this LOMON Shrug Cardigan.

Diaphanous clothing is trending in all categories of fashion, and that includes knitwear. In fact, a lightweight knit is one of the best ways to ace the sheer clothing trend. These delicate sweaters feel perfectly on trend for anyone who appreciates the "Quiet Luxury" aesthetic. Ideally, look for a piece made from a linen or silk blend for the perfect drape and softness. It makes for a little extra coverage on cool summer days without the heaviness that will leave you sweating. That means these pieces are also perfect during the shift to fall weather.

Importantly, sheer doesn't need to mean revealing. You can use sheer knits to add an extra layer over your existing summer outfit and create soft dimension. "Sheer clothing's real strength is not in being worn alone, but as part of a heavily layered, really drapey fit," wrote one Reddit user. You can also tone down the sexiness inherent to a see-through layer by reaching for a muted, neutral color, like navy or taupe. If your style is more classic, you can play with the sheer knit trend by wearing a piece like the Imily Bela Boat Neck Knit. Alternatively, a poncho like this Argeousgor Sheer Poncho Top brings a more modern, boho vibe.

While you might be used to sweaters having long sleeves, you don't need to be locked into that type of full coverage while temperatures are still shifting. In fact, one of the best ways to make sweaters suitable for warmer weather is by opting for a sleeveless or short-sleeved knit, like a sweater vest. They can be layered over gauzy long-sleeved blouses, or paired with a tank or a tee to leave your arms exposed. "I wear sweater vests over a cami or tank top with skirts, shorts and lightweight trousers all summer," wrote one Reddit user.

If you want a trendy, flirty vibe, look for something that's more fitted — even cropped — like this Hyipels Women's Sweater Vest. Or, if you prefer something more neutral and classic, reach for a traditional crew neck in a muted color, like this Verdusa Women's Old Money Sweater Vest. Best of all, sweater vests make perfect transitional pieces. That's because, without bulky sleeves, they layer comfortably underneath jackets and coats.