Where are you browsing from today?

USA flag

US
EU / UK

Ethical Clothing
USA flag

Sustainable Cotton Underwear

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

353 Products | Page 3 of 8 | On Sale Selected

Page 3 of 8 | On Sale Selected

Sort By:

Commissions may be paid to Ethical Clothing when purchasing items with our partner brands.
Organic Cotton Top Drawer Swap in Carbon
Knickey
Organic Cotton Top Drawer Swap in Carbon
  • 200.00
  • 224.00
Girls' Organic Cotton Marigold Leggings
Crann
Girls' Organic Cotton Marigold Leggings
  • 21.00
  • 28.00
Kids Trunk Underwear 3 Pack - FINAL SALE
Mightly
Kids Trunk Underwear 3 Pack - FINAL SALE
  • 17.50
  • 28.95
Organic Cotton Long Sleeve Bodysuit - Geometric Moon
Tonle
Organic Cotton Long Sleeve Bodysuit - Geometric Moon
  • 14.00
  • 24.00
The Long-Sleeve Supima® Square-Neck Bodysuit | Goji Berry | Thong
Everlane
The Long-Sleeve Supima® Square-Neck Bodysuit | Goji Berry | Thong
  • 25.00
  • 45.00
Leggings - Flower Vines Night Sky
Winter Water Factory
Leggings - Flower Vines Night Sky
  • 16.00
  • 32.00
SET Simplicité & Hipster - Dahlia Champagne
Ode
SET Simplicité & Hipster - Dahlia Champagne
  • 68.90
  • 107.20
Baby Leggings - Deer & Foxes Dark Green
Winter Water Factory
Baby Leggings - Deer & Foxes Dark Green
  • 14.00
  • 28.00
The Form Funnel-Neck Bodysuit | Deep Taupe
Everlane
The Form Funnel-Neck Bodysuit | Deep Taupe
  • 17.00
  • 58.00
Bloomers - Veggies Green
Winter Water Factory
Bloomers - Veggies Green
  • 20.30
  • 29.00
The Form Funnel-Neck Bodysuit | Black
Everlane
The Form Funnel-Neck Bodysuit | Black
  • 17.00
  • 58.00
Organic Cotton Reinforced Knee Legging - FINAL SALE
Mightly
Organic Cotton Reinforced Knee Legging - FINAL SALE
  • 12.95
  • 18.95
Organic Cotton High-Rise Thong in Petal
Knickey
Organic Cotton High-Rise Thong in Petal
  • 10.00
  • 20.00
Thong Trio ~ 3 Organic Cotton Underwear
Kent
Thong Trio ~ 3 Organic Cotton Underwear
  • 80.00
  • 84.00
Organic Cotton Low-Rise Thong in Lunar
Subset
Organic Cotton Low-Rise Thong in Lunar
  • 10.00
  • 20.00
Organic Cotton Tank Bralette
Knickey
Organic Cotton Tank Bralette
  • 15.00
  • 48.00
Baby Leggings - Dogs on Scooters Blue
Winter Water Factory
Baby Leggings - Dogs on Scooters Blue
  • 22.40
  • 28.00
Hipster - Cassiopée Lace - Gold Sunflower
Ode
Hipster - Cassiopée Lace - Gold Sunflower
  • 17.40
  • 31.30
The Cotton Tank Bra | Burnt Sugar
Everlane
The Cotton Tank Bra | Burnt Sugar
  • 11.00
  • 28.00
Leggings - Dutch Floral Delft Blue
Winter Water Factory
Leggings - Dutch Floral Delft Blue
  • 25.60
  • 32.00
Organic Cotton High-Rise Thong in Wheat
Knickey
Organic Cotton High-Rise Thong in Wheat
  • 10.00
  • 20.00
Hipster - Black and Ivory
Ode
Hipster - Black and Ivory
  • 27.10
  • 44.60
Organic Cotton Mid-Rise Shortie in Aurora
Subset
Organic Cotton Mid-Rise Shortie in Aurora
  • 10.00
  • 20.00
Nova Legging - Black BioSculpt
Vitamin A
Nova Legging - Black BioSculpt
  • 72.00
  • 180.00
Baby Leggings - Treehouses Green
Winter Water Factory
Baby Leggings - Treehouses Green
  • 16.80
  • 28.00
Leggings - Double Decker Buses Red
Winter Water Factory
Leggings - Double Decker Buses Red
  • 22.40
  • 32.00
Organic Cotton Mid-Rise Brief in Petal
Subset
Organic Cotton Mid-Rise Brief in Petal
  • 10.00
  • 20.00
Organic Cotton Low-Rise Thong Mystery 3-Pack
Subset
Organic Cotton Low-Rise Thong Mystery 3-Pack
  • 20.00
  • 60.00
Organic Cotton Mid-Rise Hipster in Cloud Nine
Knickey
Organic Cotton Mid-Rise Hipster in Cloud Nine
  • 15.00
  • 20.00
Bodysuit - Cassiopée Lace - Gold Sunflower
Ode
Bodysuit - Cassiopée Lace - Gold Sunflower
  • 31.30
  • 103.70
Organic Cotton High-Rise Thong in Wheat
Subset
Organic Cotton High-Rise Thong in Wheat
  • 10.00
  • 20.00
Leggings - Trains Blue
Winter Water Factory
Leggings - Trains Blue
  • 25.60
  • 32.00
The Supima® Longer Boxer Brief | Uniform | Heather Blue
Everlane
The Supima® Longer Boxer Brief | Uniform | Heather Blue
  • 12.00
  • 24.00
Cairn Triangle Bra
Brook There
Cairn Triangle Bra
  • 40.60
  • 58.00
Strawberry Swing Bodysuit - FINAL SALE
Mightly
Strawberry Swing Bodysuit - FINAL SALE
  • 15.00
  • 24.00
Girls' Organic Cotton Gray Leggings
Crann
Girls' Organic Cotton Gray Leggings
  • 21.00
  • 28.00
Baby Leggings - Wildcats Lake Blue
Winter Water Factory
Baby Leggings - Wildcats Lake Blue
  • 19.60
  • 28.00
The Cotton Bralette | Black
Everlane
The Cotton Bralette | Black
  • 8.00
  • 28.00
Organic Cotton Triangle Soft Bra in Meridian
Subset
Organic Cotton Triangle Soft Bra in Meridian
  • 31.00
  • 62.00
The Form Square-Neck Bodysuit | Black
Everlane
The Form Square-Neck Bodysuit | Black
  • 17.00
  • 58.00
Organic Cotton Mid-Rise Brief in Cloud Nine
Subset
Organic Cotton Mid-Rise Brief in Cloud Nine
  • 10.00
  • 20.00
The Seamless Legging | Dusty Lavender
Everlane
The Seamless Legging | Dusty Lavender
  • 12.00
  • 58.00
The Supima® Boxer | Uniform | Black
Everlane
The Supima® Boxer | Uniform | Black
  • 12.00
  • 24.00
Organic Cotton Mid-Rise Brief Mystery 3-Pack
Subset
Organic Cotton Mid-Rise Brief Mystery 3-Pack
  • 20.00
  • 60.00
Leggings - Submarines Blue & Orange
Winter Water Factory
Leggings - Submarines Blue & Orange
  • 22.40
  • 32.00
Camisole Leopard - Ivory
Ode
Camisole Leopard - Ivory
  • 24.40
  • 68.90
Men's Breather Brief Trio - Cloud/Charcoal/Gray
Kent
Men's Breather Brief Trio - Cloud/Charcoal/Gray
  • 97.00
  • 102.00
Organic Cotton Scoop Bralette in Carbon
Knickey
Organic Cotton Scoop Bralette in Carbon
  • 24.00
  • 48.00

Filter By

Leggings (3)
Stockings (2)
Unisex (2)
Women (6)
Underwear (8)
All
Bamboo (2)
Cotton (2)
Organic-Cotton (4)
All
Boody (4)
Swedish Stockings (115)
Thinking Mu (12)
Hedoine (1)
Organic Basics (531)
Colieco (1)
Luciee (2)
Anekdot Boutique (19)
Slugs And Snails (9)
Chillax (1)
Matona (9)
Organic Zoo (56)
Armedangels (26)
Olly (6)
Hoessee (2)
The White Briefs (8)
Thought (30)
Ethletic (4)
Frija Omina (16)
Recolution (1)
Blonde Gone Rogue (3)
Mini Rodini (22)
Lovjoi (16)
Urban Goddess (39)
Cossac (1)
Mainio (1)
Hessnatur (47)
Komodo (14)
Dedicated (8)
Beaumont Organic (32)
Pigeon Organics (55)
Pangaia (3)
Boob Design (19)
Mayamiko (3)
Colorful Standard (33)
Noctu (6)
Asket (8)
Bam (71)
Juliemay (33)
Smafolk (118)
One We Like (16)
Brava Fabrics (7)
Baukjen (3)
France (8)
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