ALPHX Athletic Fit Union Pants Frost White: Room to Move, Comfort to Last

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

Regular price
$60.00
Regular price
$60.00
Sale price
$60.00
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
Functional Fly Front
Functional Fly Front
Two-button fly angled for ease of use
 Inseam
Inseam
30” inseam to reduce chafing Inseam
Stay-Put
Stay-Put
No rolling, no pinching

Choose 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 Union Pants Frost White: Room to Move, Comfort to Last - ALPHX.com - Underwear
ALPHX Athletic Fit Union Pants Frost White: Room to Move, Comfort to Last - ALPHX.com - Underwear
ALPHX Athletic Fit Union Pants Frost White: Room to Move, Comfort to Last - ALPHX.com - Underwear
ALPHX Athletic Fit Union Pants Frost White: Room to Move, Comfort to Last - ALPHX.com - Underwear
ALPHX Athletic Fit Union Pants Midnight Black: Room to Move, Comfort to Last - ALPHX.com - Underwear
ALPHX Athletic Fit Union Pants Frost White: Room to Move, Comfort to Last - ALPHX.com - Underwear
ALPHX Athletic Fit Union Pants Frost White: Room to Move, Comfort to Last - ALPHX.com - Underwear
ALPHX Athletic Fit Union Pants Frost White: Room to Move, Comfort to Last - ALPHX.com - Underwear
ALPHX Athletic Fit Union Pants Frost White: Room to Move, Comfort to Last - ALPHX.com - Underwear
ALPHX Athletic Fit Union Pants Midnight Black: Room to Move, Comfort to Last - ALPHX.com - Underwear
ALPHX Athletic Fit Union Pants Frost White: Room to Move, Comfort to Last - ALPHX.com - Underwear

Why you’ll love it

Designed for real bodies. Built for movement and all-day comfort.

  • Athletic Fit through seat and thighs — extra room where most pants restrict, without excess bulk

  • Full-length tapered leg — approximately 30″ inseam (size M) with a clean, self-trimmed hem

  • Functional two-button fly — angled at 120° for easier, more natural access

  • Soft cotton-modal stretch fabric — breathable, flexible, and comfortable from lounging to long days

  • Flatlock back seams — dual seams reduce friction and prevent wedging

  • Thoughtfully made — crafted from predominantly plant-based fibers and shipped in biodegradable packaging with carbon-offset checkout via EcoCart

“As someone with thicker thighs, it is great to find a product like these that isn't too constricting. “

Color Story

Use collapsible tabs for more detailed information that will help customers make a purchasing decision.

Ex: Shipping and return policies, size guides, and other common questions.

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

Use collapsible tabs for more detailed information that will help customers make a purchasing decision.

Ex: Shipping and return policies, size guides, and other common questions.

Bundle & Save

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

Comfort & Confidence

Two distinct fits—Modern and Athletic—engineered to move with your body, not fight it.

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.