ALPHX Athletic Fit Trunks – Maritime Navy | Support & Comfort Redefined

Designed for muscular thighs • Extra leg room • No ride-up

Regular price
$34.00
Regular price
$34.00
Sale price
$34.00
Shipping calculated at checkout.

Trusted by thousands • Free exchanges

Size
SIZE GUIDE

Between sizes? Size up for a relaxed fit.

More Leg Room
More Leg Room
Extra room through the thighs
Contoured Support
Contoured Support
Support without compression
Inseam
Inseam
2″ inseam to reduce chafing
Stay-Put
Stay-Put
No rolling, no pinching
  • Designed for muscular thighs, with extra room where it matters Contoured pouch that supports without compression Leg openings engineered to prevent ride-up and reduce chafing Soft, breathable cotton-modal stretch for all-day wear Secure waistband that stays put without rolling or digging in

Choose your fit

Prefer a more tailored leg?

Shop Modern Fit

Compare Modern vs Athletic

  • Free exchanges on unworn items
  • No-hassle returns
  • Ships fast from the U.S.
ALPHX Athletic Fit Trunks – Maritime Navy | Support & Comfort Redefined - ALPHX.com - Underwear
ALPHX Athletic Fit Trunks – Maritime Navy | Support & Comfort Redefined - ALPHX.com - Underwear
ALPHX Athletic Fit Trunks – Maritime Navy | Support & Comfort Redefined - ALPHX.com - Underwear
ALPHX Athletic Fit Trunks – Maritime Navy | Support & Comfort Redefined - ALPHX.com - Underwear
ALPHX Athletic Fit Trunks – Maritime Navy | Support & Comfort Redefined - ALPHX.com - Underwear
ALPHX Athletic Fit Trunks – Maritime Navy | Support & Comfort Redefined - ALPHX.com - Underwear
ALPHX Athletic Fit Trunks – Maritime Navy | Support & Comfort Redefined - ALPHX.com - Underwear
ALPHX Athletic Fit Trunks – Maritime Navy | Support & Comfort Redefined - ALPHX.com - Underwear
ALPHX Athletic Fit Trunks – Maritime Navy | Support & Comfort Redefined - ALPHX.com - Underwear

Why you’ll love it

Why you’ll love it

Designed for muscular thighs. Built with a cleaner leg line.

  • Athletic Fit construction — engineered with extra room through the seat and thighs to prevent squeeze, restriction, and ride-up.
  • Shorter 2” inseam — delivers a streamlined, modern silhouette without sacrificing coverage or comfort.
  • Premium cotton-modal blend — ultra-soft, breathable fabric made from 56% cotton, 38% modal, and 6% elastane for natural stretch and all-day wear.
  • Engineered support — a contoured pouch provides secure, natural support without compression.
  • No ride-up design — balanced rise and leg openings stay in place during movement, workouts, and long days on your feet.
  • Thoughtfully made — crafted from 94% plant-based fibers and shipped in biodegradable packaging with carbon-offset checkout via EcoCart.

“Finally, trunks that fit my legs without feeling tight or restrictive.”

Color Story

Maritime Navy is a deep, ocean-toned blue that feels classic but modern — softer than black, richer than standard navy.

It delivers contrast without sharpness, making it an easy everyday alternative that still reads polished and refined.

A natural choice when you want color that feels elevated, not seasonal.

Content and Care

Fabric & Feel

Soft, breathable cotton–modal blend with built-in stretch for everyday comfort and durability.

  • 56% Cotton
  • 38% Modal
  • 6% Elastane

Care

  • Machine wash cold with similar colors
  • Do not bleach
  • Tumble dry low
  • Do not iron
  • Do not dry clean
  • Avoid fabric softeners

Fit on real bodies

Designed for real bodies — not mannequin proportions Engineered specifically for athletic and muscular thighs Extra leg room where it matters — no squeezing, no restriction Contoured pouch provides natural support without compression Slightly higher back rise helps prevent slipping and ride-up How it fits Athletic Fit offers more room through the seat and thighs Shorter 2″ inseam allows greater mobility and freedom of movement without sacrificing support.Secure waistband stays put without rolling or digging in Real-world tested Worn and refined on real bodies with real proportions Built for daily wear — from workouts to long days on your feet Best for: muscular thighs, fuller seat, and guys who hate ride-up Not for: slim legs seeking a close-cut fit (Modern Fit recommended)

Bundle & Save

Save when you build your set. Mix colors and sizes.

FAQs

What are your product sizing details?

Our boxer briefs fit true to size at the waist, with a modern, close-to-the-body feel similar to most men’s pants today.

ALPHX offers two leg fits per waist size:

  • Modern Fit — Ideal if you wear regular or slim-fit jeans
  • Athletic Fit — Designed for muscular thighs or anyone who prefers more room through the leg

Use our size chart or Fit Finder to find your best fit.

How does Athletic Fit differ from Modern Fit?

Athletic Fit offers extra room through the seat and thighs while maintaining a secure, supportive waist. It’s designed to prevent leg squeeze, ride-up, and restriction without feeling loose or oversized.

Modern Fit features a more tailored leg opening for a streamlined, close-cut silhouette.

Do you accept returns or exchanges?

Domestic orders:

Free returns and exchanges on unworn, unwashed items in original packaging within 30 days of delivery.

International orders:

Returns are accepted within 30 days, but return shipping is the customer’s responsibility.

If we made a mistake with your order, we’ll make it right.

When will I receive my order?

Orders ship within 24 hours on business days (Monday–Friday).

Shipping timelines vary by carrier and destination and are shown at checkout.

Tracking is provided as soon as your order ships.