Men's Underwear Styles Guide: Briefs, Trunks & More

Most men inherit their underwear habits rather than choose them — same cut, same size, same brand, year after year. Yet the right choice affects everything from how your clothes sit to how comfortable you are at 6pm. This guide is about making that choice deliberately: what each cut actually does, how to tell if it fits, and the mistakes worth avoiding.

Start With Three Questions

Before comparing styles, answer these — they narrow the field faster than any brand comparison:

• What are you wearing on top? Slim trousers need smooth, close-fitting cuts; relaxed fits tolerate more fabric.
• How much do you move? Long commutes, gym sessions, and travel all punish the wrong cut differently.
• Do you run hot? Fabric and coverage matter more than style when temperature is the issue.

The Main Cuts, and What They Actually Do

Briefs

Full rear coverage, no leg, mid to high rise. The least fabric that still supports, which is why they disappear under tailored trousers. Best if you dislike thigh seams.

Boxer Briefs

A brief with a short leg added. The added fabric prevents inner-thigh chafing — the single most common complaint with briefs. For most men this is the safest default, and the cut we would point you to first: boxer briefs.

Trunks

Shorter leg, lower rise than boxer briefs. A modern silhouette that sits well under shorts: trunks. Watch for leg openings that ride up if the cut is too short for your thigh.

Boxer Shorts

Loose, thigh-length, button or elasticated. Excellent for sleeping and lounging; the worst choice under slim trousers, where excess fabric bunches.

Jockstraps

Open back, supportive front pouch. Originally athletic, and still the most secure option for high-movement activity.

Thongs, G-Strings & V-Strings

Minimal rear coverage, designed to eliminate visible lines. Entirely a preference call — the trade-off is less fabric to absorb and support.

How to Tell if a Pair Actually Fits

Size charts are a starting point, not an answer. Use these four checks on a new pair:

• The waistband test: two fingers should slide under it comfortably. If it leaves a deep mark after an hour, go up a size.
• The leg check: the opening should lie flat without digging in or rolling up within a few steps.
• The front check: there should be room, not compression — and no gap when you sit.
• The movement check: squat and walk. If you are adjusting yourself within five minutes, the cut is wrong for your body.

Four Mistakes Worth Avoiding

• Assuming cotton is automatically best. Cotton breathes but holds moisture, which is why it feels damp after activity. Blends and regenerated fibers often perform better.
• Buying a size up for comfort. Extra fabric usually means more bunching and chafing, not more comfort. Fix the cut instead.
• Keeping pairs far past their life. Once the waistband rolls or the fabric thins at the seat, support is gone. Rotate and replace.
• Using one style for everything. A cut that is right for the office may be wrong for a long flight or a gym session.

Matching the Cut to the Day

• Desk or long sitting: boxer briefs or briefs — stable, no ride-up.
• Gym or sport: boxer briefs or jockstraps — movement control and moisture management.
• Travel: quick-drying blends, boxer briefs; pack one more pair than you think you need.
• Hot weather: lower rise, lighter coverage, breathable fabric.
• Sleeping: loose boxers, or nothing at all.

Frequently Asked Questions

Briefs or boxer briefs?

If your thighs chafe or you wear slim trousers, boxer briefs. If you want the least fabric and firm support, briefs.

How do I find my size?

Measure your waist at the natural line, then check it against the brand's chart. Sizing varies noticeably between brands — a medium in one is a large in another.

How often should underwear be replaced?

Roughly every 6–12 months for pairs in regular rotation. Visible waistband wear, thinning fabric, or persistent odor after washing are the signals.

How many pairs is enough?

14–21 covers a weekly cycle with margin for laundry delays.

Whatever you decide, the test is simple: if you stop thinking about your underwear by mid-morning, you chose well. If you want to compare cuts side by side, our men's underwear collection groups them by style.