X-Train Boxer Brief in black from Jack Adams.  Your everyday, every event mesh boxer brief.
X-Train Boxer Brief in yellow from Jack Adams.  Your everyday, every event mesh boxer brief.
X-Train Boxer Brief in yellow from Jack Adams.  Your everyday, every event mesh boxer brief.

X-Train Boxer Brief

Regular price $38.50 Sale price$19.50
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Shipping calculated at checkout.

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  • Low stock - 5 items left
  • Backordered, shipping soon

Experience next-level comfort with the X-Train Boxer Briefs. Designed with body-defining mesh panels, these boxer briefs are engineered for breathability, support, and everyday performance. Crafted from a stretchy cotton fabric for a sleek, sculpted fit that moves with you all day. The mesh panels act as built-in ventilation zones that promote continuous air flow, helping you stay cool, dry, and fresh through any activity.

SIZE - True to size
  • Boxer brief style underwear.
  • Low-rise, sits below the natural waistline.
  • Supportive cotton fabric with a hint of elastane for all day comfort.
  • Functional Horizontal Fly – Paired with a supportive mesh pouch and chafe-free flatlock stitching.
  • 3.5" Inseam – Modern cut sits higher on the thigh without bunching or riding up.
  • 1.5” Logo Waistband – Covered elastic waistband with Jack Adams tag stitched to the front.
  • Model's height is 6’2” and wearing size M.
  • Fabric: 95% Cotton, 5% Elastane
  • Machine wash cold. Air dry. Do not bleach.

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Discreet packaging: plain poly bag or brown box.

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Jack Adams™ underwear and shorts/pants sizing is measured at the waist. To find your correct waist size, measure your torso about one inch below the belly button. To find your size in all of our tops and hoodies, measure your chest around, at approximately one inch below your arm pit. 

Size Chart - INCHES

SIZES (inches) S M L XL XXL 
CHEST 35-37 38-40 41-43 44-47 N/A
NECK 14-14.5 15-15.5 16-16.5 17-17.5 N/A
WAIST 27-29 30-32 33-35 36-38 38-43

 Size Chart - METRIC

SIZES (cm) S M L XL XXL 
CHEST 89-94 97-101 104-109 112-118 N/A
NECK 36-37 38-39 41-42 43-44 N/A
WAIST 69-73 76-81 84-89 91-97 97-109

 

 

  • 5 stars: 14 (93%)
  • 4 stars: 1 (7%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
F
Frédéric G.
Boxer

very comfortable
exact size
super sexy product
very satisfied

E
Eric
X-Train Boxer Brief

Extremely comfortable. Very light weight. I love them!

S
Steve Henao
X-Train Boxer Brief

I love them. I love the new style in the front that gives me access to my junk a lot faster. Great work! Very comfortable as well!

M
Michael
Nice drawers!

Comfortable, durable, but wish it had more lift on the balls. They keep sagging down between like standard briefs.

J
John L.
Incredible Underwear

The fit of this boxer brief is incredible and the support is off the hook for the boys. Glad to see a black colorway!

A
Andrew Boehm
Perfect for working out

The X-Train Boxer Brief takes all that is great about the trainer trunk - support/function/no riding up during workouts - and adds the punch hole material for extra breathability. The waist band is really comfortable and the fit is slightly shorter than the trainer trunk making it the ultimate pair for exercise.

J
James Johnston
X-train boxed brief

I really love the fit.

F
Fletcher
Jack Adam's Boxers Briefs Are The Best!

Hands downs these are the best boxer Briefs I have ever worn. Jack Adam's knows how to make boxer briefs for men. I would highly recommend these.

I
Iban Gzlez Ugalde
Amazing

So comfortable, so good, so sexy my favorite

J
JB
Vented pouch feels great

Nice sturdy absorbent cotton in the perfect Jack Adams cut. The perforated pouch keeps the boys dry and happy. The quick-draw fly is definitely the way to go.

T
Tommy
Awesome fit. True to size!

Soft and fit great. Best pouch I have ever worn. Will definitely be re-purchasing in the future.

M
Michael from Canada
1st. Time Buyer

Very good quality and comfort.

M
Mark W.
Best Boxer Brief Ever. Move over 2xist

I thought I found the best underwear when I found 2-×ist boxer briefs..boy was I mistaken. I now have the wife adding these to my routine gifts (birthdays, Father’s Day, etc..). Btw she loves the “package pocket” in the front for easy access!

C
Christian
Great fit

This is my first purchase of boxer briefs from Jack Adam's. I am totally blown away by the fit, comfort and quality. I ordered 2 more pairs in yellow. Bright. But why not! Thanks guys.

D
Dean-Ohio
What took so long?

Why did I wait so long to try these!!?? Gap boxers are HISTORY. This is the best purchase I have made in years. So comfortable. Sometimes it feels like I'm wearing NOTHING. Sizing was perfect. Now I have to order MORE!

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