Choose men’s underwear by fit, coverage, and the details that matter to you. These five guides are shopping checklists, not product test results or rankings.
1. Briefs, trunks, or boxer briefs?
Start with how much leg coverage you want. Style names help narrow the field, but two products with the same label can have very different cuts.
| Style | Typical shape | What to check |
|---|---|---|
| Briefs | No extended leg; rear coverage varies | Leg openings, waistband height, and pouch shape |
| Trunks | Short-legged, relatively square silhouette | Actual inseam and whether the leg opening suits your thighs |
| Boxer briefs | Longer leg coverage than a typical trunk | Inseam, thigh measurements if supplied, and seam placement |
| Bikinis | Usually narrower sides and less coverage | Front and rear views; labels are not standardized across brands |
A practical way to choose: take a pair you already like, lay it flat without stretching, and note the waistband width, rise, and inseam. Compare those details with the new product’s garment measurements if available. Do not compare flat garment measurements directly with a body-size chart.
If your current pair rides up or digs in, changing the style may help, but the size and cut can also be the cause. A longer leg is not a guarantee against riding up, and a tighter waistband is not a substitute for a better fit.
For a first purchase from an unfamiliar brand, consider one pair before buying a multipack. Check whether opened underwear can be returned before committing.
Explore briefs, trunks, and boxer briefs.
2. Low-rise or regular-rise?
Rise describes how high the garment sits, but brands do not all measure or label it in the same way. A low-rise brief from one brand can sit differently from another brand’s low-rise bikini.
Choose the waistband position first. Think about where you want the waistband relative to your trousers and which position you already find comfortable. Use side-view photos and the product’s rise measurement when provided. A model’s photo shows styling, not a guarantee of where the waistband will sit on your body.
- Compare like with like: check whether a measurement is front rise, back rise, or a body measurement.
- Check both sides: a low front does not tell you how much coverage the back provides.
- Keep size and rise separate: buying a smaller size to get a lower waistband can also change the fit of the pouch and leg openings.
- Consider your outfit: compare the intended underwear waistband position with the trousers you plan to wear.
If the product page gives only a waist-size range, ask the retailer for the missing garment measurement. That is more useful than guessing from a size letter or assuming all products from the same brand share a cut.
Start with the brief and bikini archives, then compare the actual product details.
3. How to compare fabric blends
A fabric name is a starting point. It does not tell the whole story about thickness, stretch, seams, lining, or how a finished garment will feel to you.
Read the full composition. Record the percentages rather than just a headline such as “cotton” or “modal.” Check whether the listed blend applies to the body, lining, and waistband or only one part of the garment.
- Construction: compare knit, mesh, and lining details. Two garments with a similar fiber blend can have different coverage and texture.
- Stretch: look for the brand’s description of stretch and recovery. Do not assume that a higher elastane percentage automatically makes a garment better.
- Seams and waistband: note where seams sit and whether the elastic is covered, exposed, wide, or narrow.
- Care: check washing and drying instructions before buying. A pair that needs a routine you will not follow may be an impractical choice.
- Claims: treat terms such as “breathable,” “buttery-soft,” or “performance” as claims to examine, not independent test results.
If you have a favorite pair, its composition and construction provide a useful personal reference. Compare a new purchase against that reference after wearing and washing it according to the label. Keep notes on your own experience rather than treating fabric marketing as a universal comfort rating.
On our product pages, “From the Brand” identifies manufacturer-supplied information. A product introduction is not a hands-on fabric test.
4. Your first jockstrap or thong
These are different shapes, not interchangeable labels. A typical jockstrap has a front pouch, waistband, and straps around the back with an open rear. A thong typically connects the front and waistband with a narrow rear section. Individual designs vary, so inspect front, side, and rear photos.
Decide what you want to try. It might be the look, less fabric under an outfit, or a different underwear silhouette. There is no need to assume one style will suit every activity or every body.
- Use the brand’s current size chart and measure where its instructions specify.
- Check strap width, adjustability if any, pouch construction, and lining.
- Read fabric and care information, including whether sheer panels are present.
- Check the hygiene and return policy before opening or trying on the product.
- Try the fit at home before choosing it for a long day. Stop wearing a garment that causes discomfort.
A fashion jockstrap is not automatically protective sports equipment. If your sport requires a protective cup or other equipment, use equipment designed and specified for that purpose.
Start with one pair from a retailer that gives clear measurements and product photos. When comparing two options, prioritize the fit details you can confirm over claims such as “ultimate support.”
Explore jockstraps and thongs.
5. How to compare underwear brands online
A useful comparison includes the cost of getting the right pair to you, not just the number beside the buy button.
- Identify the exact item. Match the style, fabric, color, and pack quantity. A similarly named product may be a different version.
- Compare size charts. Use body measurements and the stated units. Small, medium, and large are not consistent measurements across brands.
- Confirm currency and destination. A dollar sign alone does not establish USD, CAD, AUD, or another currency. Check the retailer’s selected region.
- Calculate the delivered cost. Include shipping and any taxes or duties shown or described by the merchant. Compare multipacks per pair.
- Read the return exclusions. Underwear policies can depend on packaging, hygiene seals, and sale status. Check the actual policy for the item and your location.
- Check the evidence. Separate brand descriptions, customer feedback, and documented hands-on reviews. Look for the reviewer’s size and testing context where available.
For your shortlist, write down: product, size, coverage, rise, fabric, currency, delivered cost, and return conditions. If an important detail is missing, mark it “unknown” and ask the retailer rather than filling the gap with an assumption.
Our archive can help you discover products, but older listed prices and availability may have changed. The retailer’s current product page and checkout are the places to verify those details.
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Published September 27, 2026. These guides explain how to evaluate product information; they do not claim personal testing of the products in our archive.