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18-Hour Jersey Brief

$20

Unlock 20% off and free shipping in Weldon Blue. Learn More.

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Free shipping on orders over $50 • Free returns always

badge icon If you don’t love your first pair of underwear or socks, it’s on us.
  • Insanely soft jersey
    Insanely soft jersey
  • No-Roll Waistband
    No-Roll Waistband
  • Cool Mesh Zones
    Cool Mesh Zones

Our classic brief in our insanely soft, signature 18-Hour Jersey. Ideal for daily wear.

Materials & care

  • 47.5% Cotton / 47.5% Modal / 5% Spandex
    47.5% Cotton / 47.5% Modal / 5% Spandex
  • Machine wash cold with like colors
    Machine wash cold with like colors
  • Tumble dry low
    Tumble dry low
  • Imported
    Imported
The Fabric

18-Hour Jersey

Our proprietary blend of cotton, smooth modal, and stretch Lycra®, this fabric sits for 18 hours before it’s cut. That’s how long it takes to naturally expand. The result is a softer feel and more consistent fit.

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Every Detail Matters

  • Insanely soft fabric
  • No-roll waistband
  • Mesh cool zones
  • Functional fly
  • Tagless design

Complete the Look

Bright White | Front view of 2-Pack 18-Hour Jersey V-Neck Undershirt in Bright White

2-Pack 18-Hour Jersey V-Neck Undershirt $64

Bright White
Bright White | Front view of 18-Hour Rib Tank in Bright White

18-Hour Jersey Rib Tank $28

Bright White
Mai Tai / Total Eclipse | Front view of Everyday Extended Crew Sock in Mai Tai / Total Eclipse

Everyday Extended Crew Sock $1450

Mai Tai / Total Eclipse
STAFF PICK
Dark Forest | Front view of Ace Sweatpant in Dark Forest

Ace Sweatpant $78

Dark Forest
Ratings & Reviews