100% Merino Wool Lightweight Boxer Brief (8")

Men's boxer briefs made from 100% merino wool, with no polyester, nylon, or synthetic fibers in the fabric. The Minus33 Acadian Lightweight Boxer Briefs offer breathable, moisture-managing comfort for everyday wear, hiking, running, biking, and other outdoor activities.

Made from fine 17.5-micron merino wool, these boxer briefs have a lightweight 170 GSM jersey knit that helps regulate temperature and naturally resist odors. The close-fitting athletic cut provides support, while flatlock seams and an 8-inch inseam help reduce friction and chafing during movement.

Materials

100% merino wool that is OEKO-TEX® STANDARD 100 certified and Woolmark® certified.

170 GSM lightweight jersey knit with fine 17.5-micron fibers.

Australian-sourced wool.

Why we chose it

It's difficult to find men's performance underwear made entirely from natural fibers, especially without the nylon, polyester, or elastane commonly blended into merino wool boxer briefs. The Acadian boxer briefs use 100% merino wool fabric for natural breathability, moisture management, and odor resistance.

We also appreciate the thoughtful construction, including a covered waistband that keeps merino wool against the skin and flatlock seams designed to minimize irritation.

Minus33's OEKO-TEX® STANDARD 100 certification means the textiles have been tested for a range of harmful substances. The brand also states that its garments are made without intentionally added PFAS.

Fit + details

• Men's athletic fit, designed to sit close to the skin
• 8-inch inseam for extended leg coverage
• Lightweight 170 GSM merino wool jersey
• Fine 17.5-micron fibers for a soft feel
• Covered waistband with merino wool against the skin
• Flatlock seams to help prevent chafing
• Naturally breathable, moisture-managing, and odor-resistant
• Suitable for year-round wear
• Runs true to size; size up for a more relaxed fit
• Size Large weighs approximately 3.5 oz (100 g)

Care

Turn inside out and machine wash cold on a gentle cycle with like colors, using a mild or wool-specific detergent. Tumble dry low and avoid bleach or fabric softener. Store in an airtight container when storing for extended periods.