Merino Wool Sport Boxer Brief - Indigo
Our Sport Boxer Brief has a close, supportive fit with 5% elastane for stretch. Choose your size by waist measurement. If you're in-between sizes or near the upper end of a size, we recommend sizing up.
| Sport Boxer Brief | Waist |
| XS | 25"-27" (64-69 cm) |
| SM | 28"-30" (71-76 cm) |
| MD | 31"-33" (79-84 cm) |
| LG | 34"-36" (86-91 cm) |
| XL | 37"-39" (94-99 cm) |
| XXL | 40"-42" (102-107 cm) |
- Low stock - 4 items left
- Backordered, shipping soon
More support, more warmth, and better recovery. The Sport Boxer Brief in Indigo takes everything we love about merino underwear and adds 5% elastane, so the fabric springs back into shape on a long run, a big hike, or a full day on the bike.
It's knit in Australia from 18.4 micron merino into a 210gsm jersey, more substantial than our original 125gsm boxer brief. That extra weight brings welcome warmth on cold days, while the wool still breathes and manages moisture when it's warm, so it earns a spot in the drawer every season. Merino resists odor naturally, too, which makes it an easy pick for multi-day trips.
Indigo is a deep navy that looks sharp and hides wear. Details include a wrapped waistband that lies flat against the skin and a contoured front panel for a secure, supportive fit.
Returns: Only unopened, unworn boxer briefs can be returned. Items that have been opened cannot be returned.
Made in USA
The Sport Boxer Brief has a close, supportive fit and runs true to size. Use the size chart above to find your size by waist measurement. If you're between sizes, we recommend sizing up for comfort.
- 95% merino wool / 5% elastane, 210 GSM, 18.4 micron
- Merino stretch jersey knit in Australia, cut and sewn in the USA
- Stretch and recovery for support that holds its shape all day, with extra warmth that still works year round
- Breathable, moisture wicking, and naturally odor resistant
- Waistband elastic contains natural rubber latex
- Turn inside out
- Machine wash cold on delicate cycle with delicate detergent. We recommend Dirty Labs Delicate detergent.
- Hang to dry
- Do not iron
- Do not dry clean
- Free shipping on all orders over $88 to lower 48 United States
- 30 day returns on unopened, unworn boxer briefs. Items that have been opened cannot be returned.
- Orders shipped within 24 hours Monday-Friday

