Where are you browsing from today?

USA flag

US
EU / UK

Ethical Clothing
USA flag

Sustainable Underwear

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

384 Products | Page 1 of 8 | On Sale Selected

Page 1 of 8 | On Sale Selected

Sort By:

Commissions may be paid to Ethical Clothing when purchasing items with our partner brands.
Apex Trunks By Kelly Slater - Outerworn
Outerknown
Apex Trunks By Kelly Slater - Outerworn
  • 110.00
  • 145.00
APEX Trunks by Kelly Slater - Outerworn
Outerknown
APEX Trunks by Kelly Slater - Outerworn
  • 70.00
  • 145.00
APEX Trunks by Kelly Slater - Outerworn
Outerknown
APEX Trunks by Kelly Slater - Outerworn
  • 48.00
  • 145.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 46.00
  • 145.00
Organic Cotton High Rise Legging
Ten Tree
Organic Cotton High Rise Legging
  • 18.00
  • 30.00
InMotion 7/8 Pocket Legging
Ten Tree
InMotion 7/8 Pocket Legging
  • 46.80
  • 78.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 120.00
  • 145.00
InMotion Longline Active Bra
Ten Tree
InMotion Longline Active Bra
  • 34.80
  • 58.00
APEX Trunks by Kelly Slater - Outerworn
Outerknown
APEX Trunks by Kelly Slater - Outerworn
  • 80.00
  • 145.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 110.00
  • 145.00
InMotion Longline Active Bra
Ten Tree
InMotion Longline Active Bra
  • 23.20
  • 58.00
Nomadic Trunk - Outerworn
Outerknown
Nomadic Trunk - Outerworn
  • 40.00
  • 58.00
Apex Hybrid Trunks By Kelly Slater - Outerworn
Outerknown
Apex Hybrid Trunks By Kelly Slater - Outerworn
  • 95.00
  • 128.00
Granville Legging
Ten Tree
Granville Legging
  • 40.80
  • 68.00
Mens Boxer
This Is J
Mens Boxer
  • 53.00
  • 59.00
Apex Hybrid Trunks By Kelly Slater - Outerworn
Outerknown
Apex Hybrid Trunks By Kelly Slater - Outerworn
  • 115.00
  • 128.00
InMotion Longline Active Bra
Ten Tree
InMotion Longline Active Bra
  • 23.20
  • 58.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 85.00
  • 145.00
Triangle Bra - Sale Colors
Jungmaven
Triangle Bra - Sale Colors
  • 20.00
  • 44.00
Dobby Modern Scallop Trunks - Outerworn
Outerknown
Dobby Modern Scallop Trunks - Outerworn
  • 35.00
  • 68.00
Nomadic Volley
Outerknown
Nomadic Volley
  • 39.00
  • 78.00
Granville Legging
Ten Tree
Granville Legging
  • 27.20
  • 68.00
Apex Trunks By Kelly Slater - Outerworn
Outerknown
Apex Trunks By Kelly Slater - Outerworn
  • 118.00
  • 145.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 85.00
  • 145.00
Elfin Bra
Ten Tree
Elfin Bra
  • 34.80
  • 58.00
InMotion Longline Active Bra
Ten Tree
InMotion Longline Active Bra
  • 23.20
  • 58.00
Mens Boxer
This Is J
Mens Boxer
  • 53.00
  • 59.00
Granville Legging
Ten Tree
Granville Legging
  • 40.80
  • 68.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 120.00
  • 145.00
InMotion Longline Active Bra
Ten Tree
InMotion Longline Active Bra
  • 34.80
  • 58.00
InMotion Double Scoop Bra
Ten Tree
InMotion Double Scoop Bra
  • 34.80
  • 58.00
InMotion Longline Active Bra
Ten Tree
InMotion Longline Active Bra
  • 34.80
  • 58.00
Granville Legging
Ten Tree
Granville Legging
  • 40.80
  • 68.00
Evolution Trunk - Outerworn
Outerknown
Evolution Trunk - Outerworn
  • 38.35
  • 85.00
Granville Legging
Ten Tree
Granville Legging
  • 34.00
  • 68.00
APEX Evolution Trunk by Kelly Slater 17" - FINAL SALE
Outerknown
APEX Evolution Trunk by Kelly Slater 17" - FINAL SALE
  • 84.00
  • 168.00
Alta Legging
Ten Tree
Alta Legging
  • 36.00
  • 40.00
InMotion Longline Active Bra
Ten Tree
InMotion Longline Active Bra
  • 23.20
  • 58.00
Granville Legging
Ten Tree
Granville Legging
  • 54.40
  • 68.00
All Time Scallop Trunks
Outerknown
All Time Scallop Trunks
  • 49.00
  • 98.00
InMotion 7/8 High Rise Legging
Ten Tree
InMotion 7/8 High Rise Legging
  • 40.80
  • 68.00
InMotion 7/8 Seamed Legging
Ten Tree
InMotion 7/8 Seamed Legging
  • 27.20
  • 68.00
InMotion Longline Active Bra
Ten Tree
InMotion Longline Active Bra
  • 23.20
  • 58.00
APEX Trunks by Kelly Slater 17" - FINAL SALE
Outerknown
APEX Trunks by Kelly Slater 17" - FINAL SALE
  • 73.00
  • 145.00
The Everyday Bra
Ten Tree
The Everyday Bra
  • 31.50
  • 45.00
Sova Merino leggings
Namuk
Sova Merino leggings
  • 39.00
  • 49.00
Granville Legging
Ten Tree
Granville Legging
  • 47.60
  • 68.00
InMotion Double Scoop Bra
Ten Tree
InMotion Double Scoop Bra
  • 34.80
  • 58.00

Filter By

Bras (99)
Leggings (107)
Lingerie (8)
Thongs (21)
Kids (7)
Men (58)
Unisex (2)
Women (317)
Underwear (384)
All
Bamboo (3)
Cotton (45)
Hemp (5)
Linen (1)
Organic-Cotton (106)
Other (208)
Sustainable-Synthetic (15)
Wool (1)
A Day (1)
Brook There (41)
Christy Dawn (26)
Crann (3)
Cuyana (7)
Duckworth (4)
Emerson Fry (1)
Fair Indigo (5)
Happy Earth (8)
Harvest And Mill (4)
Hello Jackalo (1)
Janji (9)
Jungmaven (14)
Kent (36)
Knickey (179)
Mara Hoffman (1)
Mate (43)
Miakoda (4)
Namuk (7)
Ode (70)
Outerknown (47)
Seek Collective (1)
Ten Tree (87)
The Good Tee (1)
This Is J (6)
Threads 4 Thought (136)
Toad And Co (2)
Tonle (6)
Vitamin A (46)
Vuori (50)
Wama Underwear (14)
Yala (7)
Canada (23)
United States (361)
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