Smartwool Active Wind Boxer Brief merino wool boxer brief for men
Merino comfort with windproof protection
- Windproof front panel
- Moisture-wicking merino
- Quick-drying
- Naturally odor-resistant
- Comfortable slim fit
Smartwool Active Wind Boxer Brief merino wool boxer brief for men - Black / S is backordered and will ship as soon as it is back in stock.
Size Guide
Size Guide
| Garment size | Chest | Waist | Hips | Arm length | Inseam |
| S |
36"-38" (91.5-96.5cm) |
29"-31" (73.5-78.5cm) |
36"-38" (89-96.5cm) |
31"-32" (68.5-81.5cm) |
30"-31" (73.5-78.5cm) |
| M |
39"-41" (99-104cm) |
32"-34" (81.5-86.5cm) |
39"-41" (99-104cm) |
32"-33" (81.5-84cm) |
31"-32" (78.5-81.5cm) |
| L |
42"-44" (106.5-112cm) |
35"-37" (89-94cm) |
42"-44" (106.5-112cm) |
33"-34" (84-86.5cm) |
32"-33" (81.5-84cm) |
| XL |
45"-48" (114.5-122cm) |
38"-40" (96.5-101.5cm) |
45"-48" (114.5-122cm) |
34"-35" (89-91.5cm) |
33"-34" (84-86.5cm) |
| How to measure | Take the measurement around the chest and back, under the armpits, at the strongest point. | Take the measurement at the waist, not tightening the tape. | Take the measurement at the strongest point of the hips, with the tape parallel to the ground. | The elbow should be slightly bent; take the measurement from the center of the neck, down the shoulder and arm to the wrist bone. | Measure from the crotch to the ankle bone. Or, measure a well-fitting basic garment along the seam from the crotch to the bottom. |
Pickup available at Soccer Sport Fitness
Usually ready in 24 hours
Technology & benefits
Windproof panel
Barrier against the cold
Windproof front panel that blocks the wind when temperatures drop.
56% merino wool
Dry and odor-free
Merino-polyester blend that wicks sweat, dries fast and neutralizes odor.
High-intensity hold
Holds its shape through your most intense activities.
Merrow seams
Lasting softness
Minimal seams that are durable and soft against the skin.
Merino wool windproof boxer brief for men
The Active Wind Boxer Brief adds windproof protection to all the comfort of merino wool. Its windproof front panel blocks the chill as temperatures drop — ideal for running, skiing and cold-weather activities.
Performance merino
The 56% merino wool, 44% polyester body moves sweat, dries quickly, resists odor and holds its shape even at high intensity. The front panel (85% nylon, 15% elastane) blocks the wind.
Fit and comfort
Slim fit that follows the contours of the body. Minimal Merrow seam construction is durable and soft against the skin, keeping merino wool right against the skin for maximum comfort.
Composition and care
Composition: Body: 56% merino wool, 44% polyester. Front panel: 85% nylon, 15% elastane.
Care: Machine wash warm on gentle cycle. Do not bleach. Dry flat. Do not dry-clean.

