Best organic cotton leggings brands
Updated November 7, 2026
Most leggings are nylon or polyester with spandex. Cotton leggings feel softer and breathe more for everyday wear.
Expect 5 to 10% elastane. Look for a high cotton share, a knit thick enough to stay opaque, and a wide waistband.
The 20 brands below sell cotton leggings and are listed in The Plain Thread directory. The green links go straight to their matching shop pages. Some of these brands also sell blends, so check the fiber content on each product.
Organic cotton clothing for babies and kids, from newborn basics and sleepers to toddler tops and accessories.
Australian Fair Trade certified organic cotton basics and footwear.
Fair Trade certified basics in organic Peruvian Pima cotton for men and women.
Organic Fairtrade cotton clothing for babies and children, from everyday basics to outerwear.
German casual and denim brand in organic cotton, linen, and wool for men, women, and kids.
B Corp women's clothing brand using natural and organic fibers, one of the UK's highest B Corp scorers.
German maker of organic merino wool, silk, and cotton base layers and bodywear for babies, children, and adults.
Women's premium basics in Pima cotton, alpaca, cashmere, and silk on a fewer-better-things philosophy.
Slow-fashion women's clothing made in Canada from organic cotton and other natural fibers, designed for everyday versatility.
Organic cotton children's clothing from Sweden, designed for babies and kids with bright colors and playful patterns.
Organic cotton basics and tees for men and women with a carbon offset commitment.
Affordable organic cotton basics for babies and kids.
Dutch activewear in hemp, organic cotton, and TENCEL for men and women.
Organic cotton clothing for babies, kids, and women, certified to the Global Organic Textile Standard.
PFAS-free women's ski and outdoor apparel using natural fibers.
Women's organic cotton activewear and loungewear basics.
Los Angeles brand making organic cotton and TENCEL basics and activewear for women, men, and kids.
Fair Trade certified organic cotton kids' clothing.
GOTS-certified organic cotton kidswear for ages 0 to 16, made in Denmark with bold prints and playful designs.
Common questions
Are cotton leggings good for workouts?
For yoga, walking and light exercise, yes. In heavy sweat, cotton holds moisture.
Will cotton leggings be see-through?
Thin jersey can be. Look for heavier knits.
Why do cotton leggings sag?
Cotton relaxes as you wear it. A higher elastane share helps them spring back.