Men's Vapor Brief

Soft, quick drying, and no odor. Need we say more?

  • Charcoal gray American made Duckworth merino wool underwear.
  • Green American made Duckworth merino wool underwear.
  • Gray American made Duckworth merino wool underwear.
  • close-up duckworth vapor wool fabric
1 2

Men's Vapor Brief

Soft, quick drying, and no odor. Need we say more?

Color: Coyote
$45
$45   $45

At a Glance

Description

Where we come from, comfort in the right places matters.

Duckworth's Men's Vapor Brief keeps you comfortable where it counts with natural, American-grown Merino Wool spun and knit into our proprietary Vapor Wool fabric blend.

Our Vapor Wool is naturally antimicrobial (odor-free), itch-free, cooling, breathable, quick-drying, moisture-wicking, and oh-so comfortable. Vapor Briefs feature a functional fly and a brushed elastic waistline that's soft against skin and resists riding up.

Even in the most hot and humid conditions, these briefs are guaranteed to keep things dry and temperature regulated. American-made with American wool.

NEW FOR 2026: The vapor collection now features an updated vortex-spun yarn construction designed for greater durability, reduced pilling, and longer-lasting performance. This improvement strengthens the fabric while preserving its ultralight breathability and soft feel that continues to improve with wear and washing.

Fabric

Why Duckworth Vapor Fabric?

 

Composition: 38% Montana Merino Wool, 50% American Polyester, 12% Modal (beech wood pulp)

Weight: 150 gsm

Sizing & Wool Care

Duckworth Merino Wool Men's Sizes

Cold gentle machine wash with like colors. Do not bleach. Dry flat or line dry only; do not tumble dry. Can be reshaped while wet.

 View full details

Our Fabrics

VAPOR - lightest Merino Wool first layer

A Duckworth original, “The Swiss Army Knife” layer. Our proprietary American made Merino Wool base layer fabric - Vapor - is as at home on the ski hill as it is worn solo on summer’s most blistering and sunny days. Lightweight, thermoregulating, sweat wicking, odor free and quick drying. A must have Merino Wool layer for any arsenal. 

Learn More