Merino Sport 150 Brief – Men's

For high-output training, long travel days, or everyday wear, the Merino Sport 150 Brief is our top pick for guys who want performance underwear that actually works. Lightweight merino wool regulates temperature and resists odor naturally, so you stay fresh longer without relying on synthetic treatments. Flatlock seams and a supportive fit keep chafing out of the equation on long efforts.

• Lightweight 150-weight merino wool blend balances breathability and durability without feeling flimsy
• Natural odor resistance lets you wear these longer between washes — no synthetic odor-control chemicals needed
• Flatlock seam construction eliminates friction points that cause chafing during runs, hikes, or all-day wear
• Temperature-regulating merino keeps you comfortable across a wide range of conditions — hot Southern summers included
• Supportive brief cut with a secure elastic waistband stays in place during high-output movement