Where are you browsing from today?

USA flag

US
EU / UK

Ethical Clothing
USA flag

Sustainable Men's Underwear

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

65 Products | Page 1 of 2 | On Sale Selected

Page 1 of 2 | On Sale Selected

Sort By:

Commissions may be paid to Ethical Clothing when purchasing items with our partner brands.
APEX Evolution Trunk by Kelly Slater 17"
Outerknown
APEX Evolution Trunk by Kelly Slater 17"
  • 101.00
  • 168.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 130.00
  • 145.00
Men's Vapor Brief 4-Pack
Duckworth
Men's Vapor Brief 4-Pack
  • 176.00
  • 196.00
APEX Trunks by Kelly Slater - Outerworn
Outerknown
APEX Trunks by Kelly Slater - Outerworn
  • 70.00
  • 145.00
Mens Boxer
This Is J
Mens Boxer
  • 36.90
  • 41.10
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 120.00
  • 145.00
All Time Scallop Trunks
Outerknown
All Time Scallop Trunks
  • 39.00
  • 98.00
Mens Boxer
This Is J
Mens Boxer
  • 34.10
  • 41.10
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
  • 70.00
  • 125.00
Tasty Scallop Trunks - Outerworn
Outerknown
Tasty Scallop Trunks - Outerworn
  • 60.00
  • 128.00
Mens Boxer
This Is J
Mens Boxer
  • 36.90
  • 41.10
Apex Hybrid Trunks By Kelly Slater - Outerworn
Outerknown
Apex Hybrid Trunks By Kelly Slater - Outerworn
  • 115.00
  • 128.00
All Time Scallop Trunks - Outerworn
Outerknown
All Time Scallop Trunks - Outerworn
  • 75.00
  • 98.00
APEX Trunks by Kelly Slater - Outerworn
Outerknown
APEX Trunks by Kelly Slater - Outerworn
  • 80.00
  • 145.00
All Time Scallop Trunks
Outerknown
All Time Scallop Trunks
  • 39.00
  • 98.00
APEX Trunks by Kelly Slater - Outerworn
Outerknown
APEX Trunks by Kelly Slater - Outerworn
  • 70.00
  • 145.00
Tasty Scallop Trunks - Outerworn
Outerknown
Tasty Scallop Trunks - Outerworn
  • 74.00
  • 128.00
All Time Scallop Trunks
Outerknown
All Time Scallop Trunks
  • 69.00
  • 98.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 85.00
  • 145.00
Surf Ranch Apex Trunks by Kelly Slater - Outerworn
Outerknown
Surf Ranch Apex Trunks by Kelly Slater - Outerworn
  • 135.00
  • 155.00
Evolution Trunk - Outerworn
Outerknown
Evolution Trunk - Outerworn
  • 38.35
  • 85.00
APEX Trunks By Kelly Slater - Outerworn
Outerknown
APEX Trunks By Kelly Slater - Outerworn
  • 64.00
  • 145.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 90.19
  • 145.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 120.00
  • 145.00
Apex Hybrid Trunks by Kelly Slater - Outerworn
Outerknown
Apex Hybrid Trunks by Kelly Slater - Outerworn
  • 77.50
  • 128.00
Apex Trunks by Kelly Slater - Outerworn
Outerknown
Apex Trunks by Kelly Slater - Outerworn
  • 46.00
  • 145.00
APEX Evolution Trunk by Kelly Slater 17"
Outerknown
APEX Evolution Trunk by Kelly Slater 17"
  • 118.00
  • 168.00
All Time Scallop Trunks - Outerworn
Outerknown
All Time Scallop Trunks - Outerworn
  • 75.00
  • 98.00
APEX Evolution Trunk by Kelly Slater 17"
Outerknown
APEX Evolution Trunk by Kelly Slater 17"
  • 101.00
  • 168.00
Apex Trunks By Kelly Slater - Outerworn
Outerknown
Apex Trunks By Kelly Slater - Outerworn
  • 118.00
  • 145.00
The Supima® Boxer | Uniform | Kalamata
Everlane
The Supima® Boxer | Uniform | Kalamata
  • 14.00
  • 24.00
Men's Work Week - 5 Organic Cotton Breather Briefs
Kent
Men's Work Week - 5 Organic Cotton Breather Briefs
  • 153.00
  • 170.00
The Anchor Trunk in Red Clay
Taylor Stitch
The Anchor Trunk in Red Clay
  • 50.40
  • 72.00
The Supima® Longer Boxer Brief | Uniform | Heathered Grey
Everlane
The Supima® Longer Boxer Brief | Uniform | Heathered Grey
  • 8.00
  • 28.00
Paris Getaway - Mens Boxer - Cloud
Printfresh
Paris Getaway - Mens Boxer - Cloud
  • 28.00
  • 48.00
Lucky Paws - Mens Boxer - Irish Cream
Printfresh
Lucky Paws - Mens Boxer - Irish Cream
  • 28.00
  • 48.00
The Merino Boxer in Heather Navy
Taylor Stitch
The Merino Boxer in Heather Navy
  • 30.00
  • 50.00
The Supima® Boxer | Uniform | Deep Navy
Everlane
The Supima® Boxer | Uniform | Deep Navy
  • 14.00
  • 24.00
The Supima® Boxer Brief | Uniform | Kalamata
Everlane
The Supima® Boxer Brief | Uniform | Kalamata
  • 7.00
  • 24.00
Recycled Swim Trunk - 5"
United By Blue
Recycled Swim Trunk - 5"
  • 44.00
  • 88.00
The Bayberry Trunk in Mirage Palm
Taylor Stitch
The Bayberry Trunk in Mirage Palm
  • 50.40
  • 72.00
Organic Cotton Mid-Rise Brief in Lunar
Knickey
Organic Cotton Mid-Rise Brief in Lunar
  • 10.00
  • 20.00
The Surf Trunk in Sage
Taylor Stitch
The Surf Trunk in Sage
  • 39.00
  • 88.00
The Yuba Trunk in Yellow Print
Taylor Stitch
The Yuba Trunk in Yellow Print
  • 39.00
  • 88.00
The Supima® Boxer | Uniform | Heathered Charcoal
Everlane
The Supima® Boxer | Uniform | Heathered Charcoal
  • 12.00
  • 24.00
Navy Sun Up Swim Trunk
Taylor Stitch
Navy Sun Up Swim Trunk
  • 50.00
  • 65.00
Very Merry Bagheera - Bradshaw Boxer - Pale Blue
Printfresh
Very Merry Bagheera - Bradshaw Boxer - Pale Blue
  • 14.00
  • 48.00

Filter By

Boxer-shorts (2)
Men (65)
All
Underwear (65)
All
Bamboo (3)
Cotton (13)
Organic-Cotton (14)
Other (21)
Sustainable-Synthetic (9)
Wool (5)
Christy Dawn (5)
Duckworth (4)
Everlane (21)
Girlfriend Collective (1)
Harvest And Mill (2)
Harvest & Mill (2)
Janji (2)
Jungmaven (1)
Kent (9)
Knickey (6)
Mightly (2)
Outerknown (44)
Pansy (1)
Printfresh (12)
Subset (6)
Taylor Stitch (13)
Ten Tree (3)
This Is J (5)
Toad And Co (1)
United By Blue (4)
Wama Underwear (6)
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