Where are you browsing from today?

USA flag

US
EU / UK

Ethical Clothing
USA flag

Sustainable Organic-Cotton Underwear

Shop for organic-cotton underwear from the top ethical and sustainable clothing brands in the United States

836 Products | Page 1 of 18

Page 1 of 18

Sort By:

Commissions may be paid to Ethical Clothing when purchasing items with our partner brands.
Tasty Scallop Trunks - Outerworn
Outerknown
Tasty Scallop Trunks - Outerworn
  • 74.00
  • 128.00
Organic Cotton Legging
Ten Tree
Organic Cotton Legging
  • 30.00
All Time Scallop Trunks
Outerknown
All Time Scallop Trunks
  • 39.00
  • 98.00
Organic Cotton High Rise Legging
Ten Tree
Organic Cotton High Rise Legging
  • 18.00
  • 30.00
Scoop Neck Longsleeve Bodysuit
Ten Tree
Scoop Neck Longsleeve Bodysuit
  • 58.00
Alta Legging
Ten Tree
Alta Legging
  • 40.00
Organic Cotton Men's Boxer Brief in Gale
Knickey
Organic Cotton Men's Boxer Brief in Gale
  • 30.00
PlantTec™ Organic Built-in Bra Tank | Ocean
Happy Earth
PlantTec™ Organic Built-in Bra Tank | Ocean
  • 58.00
Organic Cotton Girls Bras 3 Pack: Comfortable Bralettes
Mightly
Organic Cotton Girls Bras 3 Pack: Comfortable Bralettes
  • 34.95
Organic Cotton Mid-Rise Brief in Stone
Subset
Organic Cotton Mid-Rise Brief in Stone
  • 20.00
Organic Cotton Triangle Soft Bra in Quartz
Subset
Organic Cotton Triangle Soft Bra in Quartz
  • 62.00
Embroidered Shells - Reese Boxer Set - Coastal Cloud
Printfresh
Embroidered Shells - Reese Boxer Set - Coastal Cloud
  • 178.00
Organic Cotton High-Rise Thong in Marine
Subset
Organic Cotton High-Rise Thong in Marine
  • 15.00
  • 20.00
Organic Cotton Mid-Rise Brief in Cacao
Subset
Organic Cotton Mid-Rise Brief in Cacao
  • 20.00
Front Seam Legging
Groceries Apparel
Front Seam Legging
  • 81.00
  • 108.00
Organic Cotton Mid-Rise Shortie in Cacao
Knickey
Organic Cotton Mid-Rise Shortie in Cacao
  • 20.00
Rose Quartz Pixy Bra
Brook There
Rose Quartz Pixy Bra
  • 78.00
Organic Cotton Mid-Rise Hipster in Petal
Knickey
Organic Cotton Mid-Rise Hipster in Petal
  • 20.00
Baby Leggings - Axolotls Surf Blue
Winter Water Factory
Baby Leggings - Axolotls Surf Blue
  • 14.00
  • 28.00
Organic Cotton Better Basics Box
Subset
Organic Cotton Better Basics Box
  • 244.00
Signature Bloomer in Pool Blue
Loup Charmant
Signature Bloomer in Pool Blue
  • 60.00
Organic Cotton Better Basics Box
Knickey
Organic Cotton Better Basics Box
  • 244.00
Organic Cotton High-Rise Brief in Stone
Subset
Organic Cotton High-Rise Brief in Stone
  • 20.00
PlantTec™ Organic Seamless Leggings | Monstera
Happy Earth
PlantTec™ Organic Seamless Leggings | Monstera
  • 78.00
Organic Cotton Mid-Rise Thong in Marine
Subset
Organic Cotton Mid-Rise Thong in Marine
  • 20.00
Cheeky - Trippy Creamsicle
Known Supply
Cheeky - Trippy Creamsicle
  • 16.00
Baby Leggings - Dreaming Tigers Green
Winter Water Factory
Baby Leggings - Dreaming Tigers Green
  • 16.80
  • 28.00
New Without Tags Boxers size: 6-14 Years
Mightly
New Without Tags Boxers size: 6-14 Years
  • 15.00
Organic Cotton High-Rise Brief in Spice
Subset
Organic Cotton High-Rise Brief in Spice
  • 20.00
Baby Leggings - Monarchs Dark Green
Winter Water Factory
Baby Leggings - Monarchs Dark Green
  • 28.00
Semi-Sheer Scoop Soft Bra in Duck Egg Green
Kent
Semi-Sheer Scoop Soft Bra in Duck Egg Green
  • 58.00
Organic Cotton Triangle Soft Bra in Meridian
Knickey
Organic Cotton Triangle Soft Bra in Meridian
  • 31.00
  • 62.00
Organic Cotton High-Rise Brief in Cloud Nine
Knickey
Organic Cotton High-Rise Brief in Cloud Nine
  • 10.00
  • 20.00
Matching Slip
Loup Charmant
Matching Slip
  • 170.00
Bloomers - Solid Scarlet Red
Winter Water Factory
Bloomers - Solid Scarlet Red
  • 23.20
  • 29.00
Organic Cotton Long Sleeve Bodysuit - Sunrise
Tonle
Organic Cotton Long Sleeve Bodysuit - Sunrise
  • 24.00
Organic Cotton Low-Rise Thong in Wheat
Subset
Organic Cotton Low-Rise Thong in Wheat
  • 20.00
Leggings - Root Vegetables Chestnut
Winter Water Factory
Leggings - Root Vegetables Chestnut
  • 19.20
  • 32.00
The Seamless Bra | Burnt Sugar
Everlane
The Seamless Bra | Burnt Sugar
  • 14.00
  • 35.00
Organic Cotton Cheeky Hipster - White
Ode
Organic Cotton Cheeky Hipster - White
  • 31.30
Leggings - Trees Dark Green
Winter Water Factory
Leggings - Trees Dark Green
  • 25.60
  • 32.00
Signature Bloomer in Butter
Loup Charmant
Signature Bloomer in Butter
  • 60.00
Organic Cotton Better Basics Box in Assorted Colors
Subset
Organic Cotton Better Basics Box in Assorted Colors
  • 244.00
Signature Bloomer in White
Loup Charmant
Signature Bloomer in White
  • 60.00
Semi-Sheer Scoop Soft Bra in Blossom Pink
Kent
Semi-Sheer Scoop Soft Bra in Blossom Pink
  • 58.00
Organic Cotton High-Rise Brief in Quartz
Subset
Organic Cotton High-Rise Brief in Quartz
  • 20.00
Leggings - Bookworms Yellow
Winter Water Factory
Leggings - Bookworms Yellow
  • 32.00
Organic Cotton Low-Rise Brief in Marine
Subset
Organic Cotton Low-Rise Brief in Marine
  • 20.00

Filter By

Leggings (5)
Unisex (1)
Women (4)
Underwear (5)
All
Organic-Cotton (5)
All
Boody (1)
Lovjoi (1)
Urban Goddess (34)
Thinking Mu (3)
Organic Basics (385)
Hessnatur (48)
Komodo (8)
Dedicated (1)
Beaumont Organic (24)
Luciee (1)
Pigeon Organics (55)
Anekdot Boutique (16)
Slugs And Snails (1)
Boob Design (17)
Mayamiko (2)
Matona (10)
Organic Zoo (29)
Colorful Standard (33)
Armedangels (1)
Olly (3)
Hoessee (1)
Noctu (6)
Asket (8)
Bam (67)
The White Briefs (1)
Juliemay (30)
Smafolk (111)
Thought (30)
One We Like (16)
Ethletic (4)
Frija Omina (15)
Brava Fabrics (3)
Mini Rodini (26)
Netherlands (5)
Sales only
Ethical Clothing Logo Be the first to know when North America's top ethical brands are on sale, sign up to our newsletter here