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

411 Products | Page 2 of 9

Page 2 of 9

Sort By:

Commissions may be paid to Ethical Clothing when purchasing items with our partner brands.
Organic Cotton Triangle Soft Bra in Petal
Knickey
Organic Cotton Triangle Soft Bra in Petal
  • 31.00
  • 62.00
Organic Cotton Men's Boxer in Carbon
Knickey
Organic Cotton Men's Boxer in Carbon
  • 15.00
  • 30.00
Organic Cotton Keyhole Soft Bra in Stone
Knickey
Organic Cotton Keyhole Soft Bra in Stone
  • 62.00
Organic Cotton High-Rise Thong Mystery 3-Pack
Knickey
Organic Cotton High-Rise Thong Mystery 3-Pack
  • 20.00
  • 60.00
Seashell Triangle Bra
Brook There
Seashell Triangle Bra
  • 46.00
  • 64.00
Organic Cotton High-Rise Thong in Lunar
Knickey
Organic Cotton High-Rise Thong in Lunar
  • 10.00
  • 20.00
Triangle Bra: 2-Pack
Kent
Triangle Bra: 2-Pack
  • 102.00
  • 136.00
Organic Cotton Mid-Rise Hipster in Cloud Nine
Knickey
Organic Cotton Mid-Rise Hipster in Cloud Nine
  • 20.00
Bodysuit - Cassiopée Lace - Gold Sunflower
Ode
Bodysuit - Cassiopée Lace - Gold Sunflower
  • 31.30
  • 103.70
Organic Cotton Tank Bralette in Spice
Knickey
Organic Cotton Tank Bralette in Spice
  • 15.00
  • 48.00
Organic Stretch Midi Legging
Mate
Organic Stretch Midi Legging
  • 61.00
  • 88.00
Organic Cotton Low-Rise Thong
Knickey
Organic Cotton Low-Rise Thong
  • 20.00
Organic Comfort High Waist Brief
Mate
Organic Comfort High Waist Brief
  • 19.00
  • 28.00
Organic Stretch Midi Legging
Mate
Organic Stretch Midi Legging
  • 61.00
  • 88.00
Organic Stretch Pocket Legging
Mate
Organic Stretch Pocket Legging
  • 75.00
  • 108.00
Organic Cotton Tank Bralette in Cacao
Knickey
Organic Cotton Tank Bralette in Cacao
  • 15.00
  • 48.00
The Mel Panty | Charcoal
Christy Dawn
The Mel Panty | Charcoal
  • 48.00
Organic Cotton Mid-Rise Retro Brief in Carbon
Knickey
Organic Cotton Mid-Rise Retro Brief in Carbon
  • 20.00
Organic Cotton Mid-Rise Hipster in Cacao
Knickey
Organic Cotton Mid-Rise Hipster in Cacao
  • 20.00
Organic Supima Cotton High-Cut Brief
Kent
Organic Supima Cotton High-Cut Brief
  • 21.00
  • 28.00
Girls' Organic Cotton Gray Leggings
Crann
Girls' Organic Cotton Gray Leggings
  • 28.00
Organic Cotton High-Rise Thong in Aurora
Knickey
Organic Cotton High-Rise Thong in Aurora
  • 10.00
  • 20.00
Hemp Boxer Briefs
Wama Underwear
Hemp Boxer Briefs
  • 24.00
  • 32.00
Organic Cotton High-Rise Brief in Stone
Knickey
Organic Cotton High-Rise Brief in Stone
  • 20.00
Organic Cotton High-Rise Thong in Stone
Knickey
Organic Cotton High-Rise Thong in Stone
  • 20.00
Organic Cotton High-Rise Brief in Marine
Knickey
Organic Cotton High-Rise Brief in Marine
  • 20.00
Girls' Organic Cotton Marigold Leggings
Crann
Girls' Organic Cotton Marigold Leggings
  • 28.00
Organic Cotton Maternity Above-Belly Brief in Carbon
Knickey
Organic Cotton Maternity Above-Belly Brief in Carbon
  • 25.00
Organic Cotton Low-Rise Thong in Carbon
Knickey
Organic Cotton Low-Rise Thong in Carbon
  • 20.00
Organic Cotton Maternity Above-Belly Brief in Cloud Nine
Knickey
Organic Cotton Maternity Above-Belly Brief in Cloud Nine
  • 25.00
Midnight Thong
Brook There
Midnight Thong
  • 48.00
Organic Cotton Mid-Rise Hipster in Stone
Knickey
Organic Cotton Mid-Rise Hipster in Stone
  • 20.00
Organic Cotton Low-Rise Thong in Cloud Nine
Knickey
Organic Cotton Low-Rise Thong in Cloud Nine
  • 20.00
Organic Stretch Midi Legging
Mate
Organic Stretch Midi Legging
  • 61.00
  • 88.00
SET Simplicité & Hipster - Dahlia Black
Ode
SET Simplicité & Hipster - Dahlia Black
  • 107.20
Organic Cotton High-Rise Thong in Wheat
Knickey
Organic Cotton High-Rise Thong in Wheat
  • 20.00
Organic Stretch Full Length Legging
Mate
Organic Stretch Full Length Legging
  • 68.00
  • 98.00
Organic Cotton Triangle Soft Bra in Wheat
Knickey
Organic Cotton Triangle Soft Bra in Wheat
  • 62.00
Triangle Bra & Thong Set
Kent
Triangle Bra & Thong Set
  • 72.00
  • 96.00
Organic Cotton Low-Rise Thong in Lunar
Knickey
Organic Cotton Low-Rise Thong in Lunar
  • 10.00
  • 20.00
Triangle Bra & Hipster Set
Kent
Triangle Bra & Hipster Set
  • 72.00
  • 96.00
The Mel Panty | Natural
Christy Dawn
The Mel Panty | Natural
  • 48.00
Ashlyn Ultra-Stretch Bamboo & Organic Cotton Bootcut Legging
Yala
Ashlyn Ultra-Stretch Bamboo & Organic Cotton Bootcut Legging
  • 108.00
SET Simplicité & Hipster - Black and Ivory
Ode
SET Simplicité & Hipster - Black and Ivory
  • 68.90
  • 107.20
Organic Cotton Men's Boxer Brief in Meridian
Knickey
Organic Cotton Men's Boxer Brief in Meridian
  • 30.00
The Cristobal Boxers | Summer Orchard
Christy Dawn
The Cristobal Boxers | Summer Orchard
  • 54.60
  • 78.00
Organic Cotton Keyhole Soft Bra in Marine
Knickey
Organic Cotton Keyhole Soft Bra in Marine
  • 62.00
Organic Cotton Mid-Rise Brief Mystery 3-Pack
Knickey
Organic Cotton Mid-Rise Brief Mystery 3-Pack
  • 20.00
  • 60.00

Filter By

Bras (91)
Leggings (35)
Lingerie (24)
Panties (1)
Thongs (49)
Kids (11)
Men (66)
Unisex (6)
Women (328)
Underwear (411)
All
Bamboo (2)
Cotton (56)
Linen (1)
Organic-Cotton (352)
All
Brook There (41)
Christy Dawn (26)
Crann (3)
Fair Indigo (4)
Happy Earth (7)
Harvest And Mill (4)
Hello Jackalo (1)
Kent (35)
Knickey (160)
Mara Hoffman (1)
Mate (35)
Miakoda (3)
Namuk (2)
Ode (59)
Outerknown (4)
Ten Tree (4)
The Good Tee (1)
Tonle (6)
Vitamin A (1)
Wama Underwear (12)
Yala (2)
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