ALPHX Trunks – Modern Fit for a Sleek, Bulk-Free Feel - ALPHX.com

ALPHX Modern Fit Men’s Trunks – Sleek, Supportive & Everyday Ready

Modern Fit Trunks are designed for lean to average builds that don’t need extra room through the leg. Using the same premium fabric as Athletic Fit, this collection refines standard underwear proportions to eliminate excess fabric and bulk—creating a clean, streamlined trunk silhouette that stays comfortable and smooth under clothing.

Streamlined Comfort. Tailored Performance.

 ALPHX Modern Fit Trunks are engineered for slim to average thighs that don’t need extra room through the leg. Using the same premium fabric as our Athletic Fit, Modern Fit refines the proportions—eliminating excess fabric while maintaining comfort, support, and all-day wearability.

Designed to move with you, not bulk up under clothing.

Designed for a Slim to Average Thighs

  • Slimmer leg profile than Athletic Fit
  • Refined fit through seat and thigh
  • Balanced support without excess bulk
  • Comfort that moves naturally with your body
  • Clean modern silhouette under clothing

Built for Daily Wear

  • Soft cotton–modal–elastane stretch fabric
  • Flatlock seams to reduce irritation and chafing
  • Supportive contoured pouch
  • No-roll waistband—no pinching or folding
  • Stays smooth under slim or tailored pants

Modern Fit Trunks are ideal for men who prefer a sleek, close fit and don’t need additional room through the thigh.

Not sure which fit is right for you? Take our Fit Quiz to discover your perfect match.

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FAQ's ALPHX Modern Fit Trunks

What makes ALPHX Modern Fit Trunks different from boxer briefs?

ALPHX Modern Fit Trunks offer the same support as a boxer brief but with a shorter 2-inch inseam for a more streamlined look. They eliminate excess fabric, ensuring a sleek fit that stays in place without ride-up or bulk.

Will ALPHX Modern Fit Trunks ride up during the day?

No. Our trunks are designed with a no-ride, no-chafe fit, meaning they stay put throughout the day. The precise cut and just-right stretch prevent shifting or bunching, keeping you comfortable from morning to night.

Are ALPHX Modern Fit Trunks good for slim or athletic builds?

These trunks are specifically designed for men with slim to average thighs. The contemporary fit sits low on the waist, and is slim cut through the hips and seat. Looking for more leg room? Check out our Athletic Fit which provides the same contemporary fit as our Modern with an extra 1.6 inches in thigh circumference designed for guys with larger or muscular legs.

What materials are used in ALPHX Modern Fit Trunks?

Our trunks are made from a premium blend of 94% plant-based fibers. Soft breathable, cotton, naturally anti-microbial modal, and elastane for stretch and recovery. Our fabric blend ensures all-day comfort, moisture-wicking properties, and a soft feel against the skin.