Which Style Works for You

  • Performance Briefs. A low-profile cut in moisture-wicking performance blends with four-way stretch, built for high-output training days when you need everything to stay in place.
  • Everyday Briefs. Classic coverage in soft pima cotton that breathes all day, shaped with a contoured fit that doesn't bunch or shift during regular movement.
  • Boxer Briefs. The most versatile cut in the collection — longer leg coverage in performance fabric or pima cotton, depending on how you're spending your day.
  • Trunks. A shorter, squared-off cut that sits between a brief and a boxer brief. Works well under slim-fit pants and adapts from the gym to going out without the extra fabric.
  • Athletic Supporters. Structured support for training-specific days. Built with a reinforced pouch and compression-fit waistband for workouts that demand more from your gear.

Wear under men's pants, shorts, and men's tees for a complete, comfortable fit.

What People Ask About Our Men's Underwear

What makes these the best mens underwear for active guys?

These styles are built specifically for men who move between athletic and everyday contexts without changing their whole wardrobe. The fabrics do the functional work: moisture-wicking performance blends pull sweat away during training, while pima cotton handles the low-activity hours with softness and breathability that holds up all day. Four-way stretch means the fit moves with you rather than against you, whether you're in the middle of a squat or sitting through a two-hour meeting. Construction details matter too — flat seams reduce chafe, the waistband keeps its elasticity through repeated washing, and the pouch is shaped to sit naturally without constant adjustment. It's not about marketing claims. It's about whether the underwear actually performs across the full range of your day.

What's the difference between the performance fabric and pima cotton styles?

Performance fabric styles use a moisture-wicking, quick-dry blend engineered for athletic output — they move sweat away from the skin and dry fast, which matters during high-intensity training. Pima cotton styles are softer against the skin and breathe differently, making them a better choice for casual days, travel, or any situation where comfort over long hours is the priority. Both use four-way stretch construction, so the fit experience is similar. The choice really comes down to what you're doing that day. A lot of men end up with both in rotation and choose based on the plan for the morning.

How do I find the right size in mens underwear?

Start with your waist measurement in inches — our size guide maps directly to waist range, not general S/M/L guesswork. The fit across this collection is designed to sit snug without compression, so if you're between sizes, sizing up usually gives a cleaner result. Boxer briefs and trunks are particularly sensitive to waist size, since the leg length reads differently on different builds. If you're buying performance styles for training, a closer fit performs better. For everyday cotton styles, a slightly relaxed fit in the waist is more comfortable over long hours. Check the specific size chart on each product page — fabric composition can affect stretch behavior slightly.

Are these briefs and boxer briefs good for everyday wear?

Yes, and that's intentional. The collection is designed to transition from a morning workout to the rest of the day without needing a change. The pima cotton styles are specifically built for all-day comfort — the fabric softens with wear, the waistband doesn't dig in after a few hours, and the fit stays put without constant adjustment. Performance styles work well daily too, especially for men who run warm or live in warmer climates where moisture control matters even outside the gym. The construction across all cuts prioritizes flat seams and minimal bulk, which means they wear cleanly under any clothing without adding visible lines or bunching.

What's the best mens athletic underwear for high-intensity training?

For high-intensity work — runs, HIIT sessions, heavy lifting — the performance brief and athletic supporter cuts give you the most focused support with the least material getting in the way. The moisture-wicking performance blend handles sweat without clinging, and the four-way stretch allows full range of motion without the waistband rolling or the fabric riding up. For lifting specifically, a shorter cut like the brief or trunk keeps fabric out of the hip crease during deep squats and lunges. If you're running longer distances, the boxer brief's extended leg prevents inner-thigh friction better than a brief cut. Match the cut to the activity, and the fabric will handle the rest.

How should I wash and care for these?

Machine wash cold on a gentle cycle, and skip the dryer if you want to preserve the elastic and fabric integrity long-term. Both pima cotton and performance blends hold up better air-dried, and it extends the life of the waistband significantly. Avoid fabric softener on performance styles — it coats the moisture-wicking fibers and reduces their effectiveness over time. Cotton styles can handle fabric softener occasionally, but they don't need it. For training gear worn against the skin during hard sessions, a sports wash or enzyme-based detergent breaks down sweat residue more effectively than standard detergent. Turning them inside out before washing protects the outer surface.

How do trunks compare to boxer briefs?

The trunk is a shorter, squared-off cut that sits higher on the thigh than a boxer brief. For most men, trunks work better under slim or fitted pants because there's less fabric in the leg — no bunching, no visible lines. Boxer briefs offer more thigh coverage, which reduces friction during activities that involve leg movement and provides more warmth in cooler conditions. In terms of support, both cuts perform similarly, since the difference is in leg length rather than the pouch or waistband construction. Men with larger thighs often find trunks more comfortable because the shorter leg doesn't constrict. The choice is mostly personal preference and what you're wearing over them.

What fabrics are used across this collection?

The two main materials are pima cotton and a proprietary moisture-wicking performance blend. Pima cotton is a long-staple cotton variety that's softer, more durable, and more breathable than standard cotton — it's the fabric of choice for everyday comfort. The performance blend is a nylon or polyester-based fabric engineered for athletic use, featuring four-way stretch, quick-dry behavior, and moisture management built into the fiber. Some styles also use mesh panels for targeted ventilation in areas that generate the most heat during training. All fabrics are selected for durability through repeated washing, not just initial softness.

Do these styles work for travel?

They're well-suited for travel, specifically because performance fabric styles dry quickly after hand washing in a hotel sink and pack light without adding bulk to a bag. The four-way stretch construction holds its shape without ironing or special care. Pima cotton styles are heavier and slower to dry but are often the more comfortable choice on long flights or travel days where you're sitting for extended periods. A mix of both gives you coverage for active days and rest days without overpacking. Many of the boxer brief and trunk styles are versatile enough to move from a morning run to dinner without anyone knowing the difference.

What sets this brand's men's underwear apart from other premium options?

The brand started in San Francisco with a specific design problem: men's underwear that actually worked across athletic and non-athletic use without feeling like a compromise in either direction. That meant no marketing-first decisions — every fabric, cut, and construction detail was tested against real movement and extended daily wear. Pima cotton was chosen for softness and durability, not because it's a recognizable buzzword. The performance blends were selected for moisture management and stretch behavior, not just moisture-wicking certification. Sizes run across a full range with consistent fit mapping, and the aesthetic stays minimal so nothing reads as gym-specific when you're not at the gym. The result is underwear that performs at a high level without announcing itself.