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

356 Products | Page 1 of 8

Page 1 of 8

Sort By:

Commissions may be paid to Ethical Clothing when purchasing items with our partner brands.
Alta Legging
Ten Tree
Alta Legging
  • 32.00
  • 40.00
Scoop Neck Longsleeve Bodysuit
Ten Tree
Scoop Neck Longsleeve Bodysuit
  • 34.80
  • 58.00
APEX Evolution Trunk by Kelly Slater
Outerknown
APEX Evolution Trunk by Kelly Slater
  • 84.00
  • 168.00
All Time Scallop Trunks
Outerknown
All Time Scallop Trunks
  • 49.00
  • 98.00
Tasty Scallop Trunks - Outerworn
Outerknown
Tasty Scallop Trunks - Outerworn
  • 74.00
  • 128.00
Sova Merino leggings
Namuk
Sova Merino leggings
  • 49.00
All Time Scallop Trunks
Outerknown
All Time Scallop Trunks
  • 68.60
  • 98.00
Organic Cotton High Rise Legging
Ten Tree
Organic Cotton High Rise Legging
  • 18.00
  • 30.00
Organic Cotton Legging
Ten Tree
Organic Cotton Legging
  • 18.00
  • 30.00
Hipster - Laelia
Ode
Hipster - Laelia
  • 44.60
Undyed Thong
Brook There
Undyed Thong
  • 48.00
Organic Cotton Mid-Rise Shortie in Cacao
Knickey
Organic Cotton Mid-Rise Shortie in Cacao
  • 20.00
Organic Cotton Mid-Rise Hipster in Petal
Knickey
Organic Cotton Mid-Rise Hipster in Petal
  • 20.00
The Full Week ~ 7 Organic Cotton Underwear
Kent
The Full Week ~ 7 Organic Cotton Underwear
  • 126.75
  • 169.00
The Moon Bralette
Miakoda
The Moon Bralette
  • 28.00
  • 60.00
White Curve Convertible Bra
Brook There
White Curve Convertible Bra
  • 76.00
Men's Trio - 3 Organic Cotton Breather Boxers
Kent
Men's Trio - 3 Organic Cotton Breather Boxers
  • 81.00
  • 108.00
Organic Cotton High-Rise Thong
Knickey
Organic Cotton High-Rise Thong
  • 20.00
Organic Cotton Keyhole Soft Bra in Carbon
Knickey
Organic Cotton Keyhole Soft Bra in Carbon
  • 62.00
Organic Stretch Midi Legging
Mate
Organic Stretch Midi Legging
  • 61.00
  • 88.00
Organic Cotton Mid-Rise Thong in Spice
Knickey
Organic Cotton Mid-Rise Thong in Spice
  • 20.00
Organic Cotton High-Rise Brief in Spice
Knickey
Organic Cotton High-Rise Brief in Spice
  • 20.00
Organic Comfort Triangle Bralette
Mate
Organic Comfort Triangle Bralette
  • 30.00
  • 44.00
Men's Full Week - 7 Organic Cotton Breather Boxers
Kent
Men's Full Week - 7 Organic Cotton Breather Boxers
  • 189.00
  • 252.00
Organic Cotton Mid-Rise Retro Brief in Cacao
Knickey
Organic Cotton Mid-Rise Retro Brief in Cacao
  • 20.00
Organic Cotton Low-Rise Brief
Knickey
Organic Cotton Low-Rise Brief
  • 20.00
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
Organic Supima Cotton High-Cut Brief
Kent
Organic Supima Cotton High-Cut Brief
  • 21.00
  • 28.00
Ashlyn Ultra-Stretch Bamboo & Organic Cotton Bootcut Legging
Yala
Ashlyn Ultra-Stretch Bamboo & Organic Cotton Bootcut Legging
  • 108.00
The Bralette
Miakoda
The Bralette
  • 18.00
  • 58.00
SET Simplicité & Hipster - Laelia
Ode
SET Simplicité & Hipster - Laelia
  • 107.20
Organic Cotton Low-Rise Thong Mystery 3-Pack
Knickey
Organic Cotton Low-Rise Thong Mystery 3-Pack
  • 20.00
  • 60.00
Organic Cotton Cheeky Hipster - White
Ode
Organic Cotton Cheeky Hipster - White
  • 31.30
Organic Cotton High-Rise Thong in Lunar
Knickey
Organic Cotton High-Rise Thong in Lunar
  • 10.00
  • 20.00
Undyed Triangle Bra
Brook There
Undyed Triangle Bra
  • 46.00
  • 64.00
Organic Cotton Front Closure Bralette - Black
Ode
Organic Cotton Front Closure Bralette - Black
  • 59.20
Rose Quartz Thong
Brook There
Rose Quartz Thong
  • 48.00
Organic Cotton Mid-Rise Brief in Stone
Knickey
Organic Cotton Mid-Rise Brief in Stone
  • 20.00
Organic Cotton Cheeky Hipster - Black
Ode
Organic Cotton Cheeky Hipster - Black
  • 31.30
Organic Cotton Keyhole Soft Bra in Meridian
Knickey
Organic Cotton Keyhole Soft Bra in Meridian
  • 31.00
  • 62.00
Organic Cotton Mid-Rise Shortie
Knickey
Organic Cotton Mid-Rise Shortie
  • 20.00
White Triangle Bra
Brook There
White Triangle Bra
  • 46.00
  • 64.00
SET Simplicité & Hipster - Iris
Ode
SET Simplicité & Hipster - Iris
  • 107.20
Organic Cotton Mid-Rise Retro Brief in Carbon
Knickey
Organic Cotton Mid-Rise Retro Brief in Carbon
  • 20.00
Latte Jersey Slip
Brook There
Latte Jersey Slip
  • 68.00
Organic Cotton Tank Bralette in Cloud Nine
Knickey
Organic Cotton Tank Bralette in Cloud Nine
  • 15.00
  • 48.00
Organic Cotton Maternity Above-Belly Brief
Knickey
Organic Cotton Maternity Above-Belly Brief
  • 28.00

Filter By

Bras (84)
Leggings (33)
Lingerie (16)
Panties (1)
Thongs (45)
Kids (10)
Men (65)
Unisex (6)
Women (275)
Underwear (356)
All
Organic-Cotton (356)
All
Brook There (41)
Christy Dawn (2)
Crann (3)
Fair Indigo (2)
Happy Earth (8)
Harvest And Mill (4)
Kent (28)
Knickey (161)
Mara Hoffman (1)
Mate (36)
Miakoda (3)
Namuk (1)
Ode (36)
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