Shop ALPHX Contemporary Fit Underwear – Athletic Briefs, Trunks & Boxer Briefs - ALPHX.com

ALPHX Men’s Underwear – Tailored Fit, Elevated Comfort

A Better Fit for Every Body

At ALPHX, we design men’s underwear that moves with you, not against you. Whether you prefer briefs, trunks, or boxer briefs, our styles deliver premium comfort, breathable fabrics, and a tailored fit designed for real life.

Styles for Every Preference

  • Briefs: Classic cut with a high-leg opening, full coverage, and modern comfort-first materials.
  • Trunks: Short-leg profile with a secure waistband. Available in Modern or Athletic Fit for your build.
  • Boxer Briefs: Maximum coverage, a supportive pouch, and stay-put legs—offered in both Modern and Athletic Fits.

Signature Features Across All Styles

  • Soft, breathable cotton–modal–elastane fabric
  • Contoured pouch for natural lift and comfort
  • No-roll waistband and flatlock seams
  • Built for all-day wear—work, gym, or downtime

The Fit You’ve Been Missing

Choose from Modern Fit for lean to average builds or Athletic Fit for muscular thighs. Not sure which is right for you? Take our Fit Quiz.

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FAQs ALPHX Underwear

What makes ALPHX underwear different?

ALPHX underwear is engineered for the perfect fit, offering two exclusive leg widths—Modern for slim to average thighs and Athletic for muscular legs. Allowing you to pair your waist size with your leg fit creates a more personal fit and therefore a better fit. This ensures superior comfort without compromise.

What styles of underwear does ALPHX offer?

We offer premium briefs, trunks, boxer briefs, and lounge pants, all crafted from a soft, breathable, and eco-friendly blend of cotton and modal for all-day comfort.

How do I find my perfect ALPHX fit?

Check out our Fit Guide to find your best size and fit in ALPHX Underwear.

Do you offer free shipping?

Yes! We offer free U.S. shipping on all orders above $75.00 and we ship for $5.00 on orders below $75 so you can enjoy premium comfort without a lot of extra costs.

Can I get a discount on my first order?

Yes! New customers who sign up to receive our newsletter will receive 20% off their first order—We promise not to inundate your inbox and you can cancel at any time.