9 Sustainable Lightweight Sweaters For Women (2026)
The Good Trade editors endorse products we’ve personally researched, tested, and genuinely love. We earn a commission when you purchase products or services through some of the links provided. Learn more about our methodology and business model here.
We’ve lived in lightweight sweaters from top sustainable clothing brands for years — these are our versatile favorites, made from natural ingredients and ethically produced across a range of price points.
If there’s one piece of clothing you’ll find at our desks, in our carry-on bags, stuffed into an oversized beach tote, or worn on repeat when dining al fresco, it’s a lightweight sweater. It easily dresses up (or down) any outfit, helps regulate our body temperature (particularly in cold offices!), and inconspicuously hides any lunchtime stains or elbow holes we may have. (Just us?) But seriously: A breathable, durable, and well-fitting sweater is always in our wardrobe. This summer, you’ll find us styling the sweaters below with everything from relaxed denim to boxer shorts and sandals — we love a truly effortless closet staple that pairs with everything and instantly brings in a cool girl vibe. And while the quality of knitwear is generally declining across the industry, the brands below are committed to using quality materials (that won’t pill after the first wear and actually stand the test of time!), like organic cotton, cashmere, and wool — while still keeping it light and breezy.
If you’re looking less for layering and more for warmth, check out our recommendations for sustainable sweaters and cardigans. Our 99 sustainable clothing guide also has numerous options for the best sweaters at all warmth levels. 🧶
1. Pact
Best For | Relaxed sweaters and cardigans
Sweater Materials | Organic cotton
Size Range | XS – 2X
Price | $68
Pact’s pieces are essentials for our wardrobe: They’re all crafted with organic cotton (aka warm but not suffocating!), sewn in Fair Trade Certified factories, and at a reasonable price point. The lightweight layers here all have a relaxed, casual feel — from the popular airplane sweatshirt tee for layering to the classic dolman sweater, all available in a variety of colors to mix and match. Superior in quality and in ethics, these lounge-worthy sweaters are our sustainable go-to all year long.
Why Others Love It | “This is excellent for travel or everyday wear. I wore it as the set on a recent trip and was able to repurpose this top for multiple outfits. I love it!” – Stefanie K. (Read all reviews.)
2. Reformation
Best For | Oversized “boyfriend” sweater
Sweater Materials | Recycled cashmere blend
Size Range | XS – XL
Price | $168+
There are few brands as stylish as Reformation, and its Cashmere Boyfriend Sweater and Cashmere Crew Cardigan are both très chic — especially as seasons transition. Made from a recycled cashmere blend, this dreamy pieces comes in multiple beautiful colors, including bright red, deep olive, and French-inspired stripes. All pieces at Reformation are sustainably and ethically made, and the brand’s been fully climate neutral since 2015. Whether you pair the cardigan with a skirt on warmer days or throw one on with a scarf on crisper ones, you’ll look as fashionable as ever.
3. MATE the Label
Best For | Alpaca blends
Sweater Materials | Cotton, alpaca, wool blend
Size Range | XS – XL
Price | $138+
MATE the Label does elevated basics better than most, and its sweaters are no exception. Crafted in natural fiber blends with the brand’s signature laid-back California feel, these knits are cozy without feeling overly heavy — perfect for throwing on over a tee when summer temps dips at night. From perfectly oversized crews to soft ribbed cardigans in earthy neutrals, every piece feels effortlessly wearable year-round. Plus, MATE’s commitment to low-tox materials and ethical production makes slipping one on feel even better.
Why Others Love It | “The material is so soft and comfortable-doesn’t feel heavy or make you sweat. Very flattering neckline and sleeves. It falls in such a nice spot, especially for curvy girls, making this my new go to sweater for work, a night out, or even a fun girls day!” – Kim (Read all reviews.)
4. NAADAM
Best For | Cashmere sweaters
Sweater Materials | Mongolian cashmere
Size Range | XXS – 3X
Price | $128+
NAADAM is the expert on cashmere. The team sources its cashmere directly from the Gobi Desert, partnering with local Mongolian communities and offering fair, equitable wages. And while you could certainly find chunky knit sweaters and heavy-duty hoodies here, NAADAM also carries lightweight cashmere, too. We’re big fans of the reversible designs (we love a two-in-one, what can we say?), as well as the airy, flowy styles. If you’re like us — always cold in the office but warm outdoors — NAADAM’s sweaters are a non-negotiable.
Why Our Editors Love It | “Right out of the bag, the sweater was velvety soft. After throwing it on, I was impressed again — balloon sleeves on a short person like me are usually a miss, but these were a near-perfect length. And the navy is dark, essentially just one shade away from black, so it matched my black pants but didn’t seem too monochrome either. And most importantly, I was incredibly warm but not sweltering hot. TL;DR? It checked all the boxes.” – Henah Velez, Contributing Editor [Read the full review.]
5. Sézane
Best For | Chic silhouettes
Sweater Materials | Mongolian cashmere
Size Range | XXS – 3X
Price | $120+
Cozy sweaters with a chic Parisian twist? Sign us up. Since 2013, Sézane has been bringing their sustainable, vintage-inspired curations to life. Their knitwear pieces are a dream — think cardigans and that pair best with a glass of wine on a patio. And best of all, the brand prioritizes thoughtful production practices, including lower-impact materials and limited-run collections designed to reduce overproduction without sacrificing an ounce of style.
Why Others Love It | “Right out of the bag, the sweater was velvety soft. After throwing it on, I was impressed again — balloon sleeves on a short person like me are usually a miss, but these were a near-perfect length. And the navy is dark, essentially just one shade away from black, so it matched my black pants but didn’t seem too monochrome either. And most importantly, I was incredibly warm but not sweltering hot. TL;DR? It checked all the boxes.” – Henah Velez, Contributing Editor [Read the full review.]
6. Quince
Best For | Cardigans and sweater tanks
Sweater Materials | Mongolian cashmere, organic cotton, yak wool, linen
Size Range | XS – XL, limited styles available 1X — 3X
Price | $30+
Quince’s sustainable sweaters are made to last, thanks to the quality materials, like Grade A Mongolian cashmere and organic cotton. And because the team can ship directly to you versus working with traditional middlemen, the prices are also much more accessible. The details are also impressive, from the La Ligne-inspired stripes to the maternity-friendly fits to the versatile cashmere tees. Strategically designed, sustainable, and sophisticated — whatever the season.
Why Others Love It | “Lovely layering piece. This piece flatters curves without being too revealing or pinching. It is cropped, but there is enough length to tuck into high waisted pants. It looks great underneath a jacket.” – Tera L. (Read all reviews.)
7. Organic Basics
Best For | Loungewear
Sweater Materials | Organic cotton, responsible wool, recycled poly
Size Range | XXS — 3X
Price | $55+
Minimalists, this one’s for you. Organic Basics has truly mastered the art of elevated basics (it’s in their name, after all!). The collection is full of understated, easy-to-style knits that make an outfit instantly feel put together. Bonus: Organic Basics values transparency and is always working to do better when it comes to sustainability — you can even peruse their latest impact report available right on their website. And the brand prioritizes lower-impact materials like organic cotton and responsible wool, so these are the kinds of knits you can feel good about reaching for on repeat.
Why Others Love It | “I loooooove this sweater! So soft and comfy, perfectly cropped. I bought it in two colors and have already worn them both a ton.” – Kate H. (Read all reviews.)
8. Kotn
Best For | Textured sweaters
Sweater Materials | Egyptian cotton, eco viscose, ECOTEC cotton, recycled cotton, recycled poly, recycled linen
Size Range | XXS – XXL
Price | $88+
Kotn’s sweaters are all about comfort, quality, and sustainability. They’re made from natural fibers like Egyptian cotton, linen, and ECOTEC cotton — meaning they’re super soft, breathable, and kind to the planet. Kotn keeps things low-impact by using eco-friendly dyes, cutting down on waste, and sourcing materials responsibly — from family-run farms in Egypt to upcycled cotton yarns in Portugal. Everything is designed to last, feel amazing, and come to you in recycled packaging (plus a reusable tote!).
Why Others Love It | “Perfect spring summer top. Quality fabric and dye and it’s just sheer enough without being too sheer.” – Sophie A. (Read all reviews.)
9. Colorful Standard
Best For | Various color sweaters
Sweater Materials | Recycled merino wool
Size Range | XS – XL
Price | $105+
Sweater lovers: You’ll want to bookmark Colorful Standard’s line. 😅 The “Recycled Merino Wool Light Crewnecks” are available in a whopping 22 colors, including everyday basics, richer hues (like Pacific Blue and Bubblegum Pink), and pastel pigments (like Soft Lavender and Honey Beige). One thing’s for sure across them all: They’re responsibly made in Portugal using 100 percent recycled wool and eco-friendly dye. Merino wool is warm yet breathable, and the feminine silhouette shows off your shape — professional enough for work, casual enough for home.
Why Others Love It | “Great size and shape. Looks great with red/white stripe shirt and it is a beautiful colour. I think it is a very flattering jumper. Good purchase.” – Susan R. (Read all reviews.)
Featured image is from Reformation
