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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, Montana-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.Please note: We cannot accommodate returns for opened briefs. Fabric Why Duckworth Vapor Fabric? Composition: 38% Montana Merino Wool, 50% American Polyester, 12% Modal (beech wood pulp) Weight: 150 gsm Sizing & Wool Care 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.
Fabric made from yarn looped into rows, the way a sweater or T-shirt is made.
Knits give when you move even without elastane. The page doesn't say which knit, so warmth and wear depend on the weight and the fiber.
Read from how the product describes its fabric. These are typical for this kind of fabric, not tested on this item.
