Where are you browsing from today?

USA flag

US
EU / UK

Ethical Clothing
USA flag

Sustainable Sustainable-Synthetic Underwear

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

242 Products | Page 1 of 6

Page 1 of 6

Sort By:

Commissions may be paid to Ethical Clothing when purchasing items with our partner brands.
APEX Evolution Trunk by Kelly Slater
Outerknown
APEX Evolution Trunk by Kelly Slater
  • 168.00
APEX Evolution Trunk by Kelly Slater 17"
Outerknown
APEX Evolution Trunk by Kelly Slater 17"
  • 101.00
  • 168.00
APEX Evolution Trunk by Kelly Slater
Outerknown
APEX Evolution Trunk by Kelly Slater
  • 168.00
APEX Evolution Trunk by Kelly Slater
Outerknown
APEX Evolution Trunk by Kelly Slater
  • 168.00
APEX Evolution Trunk by Kelly Slater
Outerknown
APEX Evolution Trunk by Kelly Slater
  • 168.00
APEX Evolution Trunk by Kelly Slater 17" - FINAL SALE
Outerknown
APEX Evolution Trunk by Kelly Slater 17" - FINAL SALE
  • 67.00
  • 168.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 90.19
  • 145.00
Dip swim trunks
Namuk
Dip swim trunks
  • 35.00
APEX Evolution Trunk by Kelly Slater
Outerknown
APEX Evolution Trunk by Kelly Slater
  • 168.00
Dip swim trunks "Tittles"
Namuk
Dip swim trunks "Tittles"
  • 39.00
Dip swim trunks "Petsies"
Namuk
Dip swim trunks "Petsies"
  • 39.00
APEX Evolution Trunk by Kelly Slater
Outerknown
APEX Evolution Trunk by Kelly Slater
  • 168.00
APEX Evolution Trunk by Kelly Slater
Outerknown
APEX Evolution Trunk by Kelly Slater
  • 168.00
Men's Comet Legging
Duckworth
Men's Comet Legging
  • 139.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 70.00
  • 125.00
APEX Evolution Trunk by Kelly Slater
Outerknown
APEX Evolution Trunk by Kelly Slater
  • 168.00
APEX Evolution Trunk by Kelly Slater 17"
Outerknown
APEX Evolution Trunk by Kelly Slater 17"
  • 118.00
  • 168.00
W's Aurora Fleece Tight
Janji
W's Aurora Fleece Tight
  • 124.00
M's Boreal Fleece Tight
Janji
M's Boreal Fleece Tight
  • 134.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 85.00
  • 145.00
APEX Evolution Trunk by Kelly Slater
Outerknown
APEX Evolution Trunk by Kelly Slater
  • 168.00
APEX Evolution Trunk by Kelly Slater 17"
Outerknown
APEX Evolution Trunk by Kelly Slater 17"
  • 168.00
APEX Evolution Trunk by Kelly Slater
Outerknown
APEX Evolution Trunk by Kelly Slater
  • 168.00
Dip swim trunks "Tittles"
Namuk
Dip swim trunks "Tittles"
  • 39.00
Band Brief in Erba
Galamaar
Band Brief in Erba
  • 61.00
  • 122.00
Slim Line Brief in Aurora
Galamaar
Slim Line Brief in Aurora
  • 35.00
  • 126.00
Monica Crop Legging 21"
Threads 4 Thought
Monica Crop Legging 21"
  • 33.60
  • 48.00
Skinny Brief in Neue Blu
Galamaar
Skinny Brief in Neue Blu
  • 35.00
  • 115.00
Tie Brief in Crema
Galamaar
Tie Brief in Crema
  • 124.00
High Kick Brief in Arabica
Galamaar
High Kick Brief in Arabica
  • 124.00
The Invisible High-Rise Hipster | Light Tan
Everlane
The Invisible High-Rise Hipster | Light Tan
  • 20.00
Sierra Bralette Top - Garden Jacquard
Vitamin A
Sierra Bralette Top - Garden Jacquard
  • 95.00
Ruched Slim Brief in Terracotta
Galamaar
Ruched Slim Brief in Terracotta
  • 124.00
Upcycled Scoop Bralette Top - Ruby EcoTex
Vitamin A
Upcycled Scoop Bralette Top - Ruby EcoTex
  • 65.00
Curve Brief in Scarlet
Galamaar
Curve Brief in Scarlet
  • 118.00
The Perform Legging® | Atlantic | Ankle
Everlane
The Perform Legging® | Atlantic | Ankle
  • 20.00
  • 68.00
Chemise Bra in Arabica
Galamaar
Chemise Bra in Arabica
  • 156.00
Cleo Wire Bra in Noir and Crema
Galamaar
Cleo Wire Bra in Noir and Crema
  • 156.00
Ruched Bottom in Crema
Galamaar
Ruched Bottom in Crema
  • 124.00
Tie Brief in Noir
Galamaar
Tie Brief in Noir
  • 124.00
Lyra Bralette Top - Brick Riviera Ripple
Vitamin A
Lyra Bralette Top - Brick Riviera Ripple
  • 72.00
  • 120.00
High Kick Brief in Blush
Galamaar
High Kick Brief in Blush
  • 124.00
High Kick Brief in Mellow Yellow
Galamaar
High Kick Brief in Mellow Yellow
  • 124.00
Mia Ring Brief in Ochre
Galamaar
Mia Ring Brief in Ochre
  • 62.00
  • 124.00
The Perform Bra® | Pine
Everlane
The Perform Bra® | Pine
  • 19.00
  • 38.00
Cleo Wire Bra in Tigre
Galamaar
Cleo Wire Bra in Tigre
  • 156.00
Coral Deco Keep It Brief Bikini Bottom
Loop Swim
Coral Deco Keep It Brief Bikini Bottom
  • 48.00
  • 68.00
Tie Brief in Arabica
Galamaar
Tie Brief in Arabica
  • 124.00

Filter By

Bras (50)
Leggings (30)
Lingerie (11)
Thongs (1)
Kids (4)
Men (25)
Unisex (1)
Women (212)
Underwear (242)
All
Cotton (3)
Organic-Cotton (12)
Sustainable-Synthetic (226)
Wool (1)
All
Abysse (2)
Duckworth (1)
Everlane (52)
Galamaar (122)
Janji (2)
Loop Swim (7)
Namuk (4)
Outerknown (17)
Taylor Stitch (5)
Threads 4 Thought (2)
United By Blue (18)
Vitamin A (10)
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