Jack Adams Modal Muscle Brief aka the Booty Brief in sage/klein - premium men&
Jack Adams Modal Muscle Brief aka the Booty Brief in red/charcoal - premium men&

Modal Muscle Brief

Regular price $35.00 Sale price$21.00
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  • Low stock - 10 items left
  • Backordered, shipping soon

The Modal Muscle Brief is made of an ultra-soft modal fabric. This body-hugging brief boasts minimal coverage at the hips for freedom of movement, full seat coverage, soft contrast binding, covered elastic waistband for comfort, and a contour pouch for all-day support. Recommended for men with bigger legs and glutes. Once you put these on you will not want to take these off

SIZE - True to size
  • Brief style underwear.
  • Low-rise, sits below the natural waistline.
  • Lenzing Modal Fabric – Naturally breathable, it regulates temperature while maintaining a sleek, sculpted fit and delivers exceptional softness with a fluid, second-skin feel.
  • Pouch – Single ply with a supportive contour pouch and chafe-free flatlock stitching.
  • 1” Waistband – Covered elastic waistband with Jack Adams tag stitched to the front.
  • Model's height is 6’2” and wearing size M.
  • Fabric: 95% Modal 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: 23 (92%)
  • 4 stars: 2 (8%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
R
Robert C.
Great brief

Perfect fit and great freedom of movement.

R
Roy D.
Modal Muscle Brief

Sooooo very soft and stretchy. Absolutely love the modal fabric. These are great everyday briefs. They fit true to size. Great cut and styling. I would definitely buy again.

O
Omar
Muscle modal brief

My wife ?’s when I wear them. She can’t stop looking at my cock!

A
Andrew
Amazing Fit and Comfort

Just discovered these and already have 5 pairs. Super comfy and my new go to underwear. Jack Adams fit is awesome

P
Paul Wallis
Modal Muscle Brief

This is a superb product. Beautiful soft, wicking fabric, and a design that is simultanelously sexy and elegant. The best tanga design I have bought in years. Thank you Jack Adams. You have won an instant repeat customer.

J
James c
Excellent fit ans feel

Holds everything right with a little hanging excellent movement for running and walking freedom to move. I’ve been switching to these for working out now than longer boxer briefs. The seem to give me much more comfort and freedom.

J
Joshua
Comfortable bikini!

I mostly wear thongs, but I found these briefs to be super comfortable. I think these are a great alternative for you guys that may not want a thong up your butt, but would still like a high leg cut and the range of motion that comes with it. The pouch has a bit more support than the Naked Fit briefs, but still enough of a "free swinging" feel. I wore these on an airplane during a super long travel day, and was in total comfort all day. Highly recommend these briefs!

j
james c
Great for workout and jeans

Great comfortable fabric and fit perfectly. Working out in the gym with my thicker thighs is perfect.. some looks too that are cool to get when changing.

A
Anthony in London
Simply amazing. Simply outstanding

Jack Adams muscle are the best and worth the money! I have big legs and butt- these fit perfect.

C
Carson D,
Awesome underwear!

Jack Adams! Most comfortable underwear I've ever owned. Ever since I tried , I don't even bother with looking for other brands. This is my go-to place for briefs....very, very, very comfortable!

M
Mark
BEST UNDERPANTS OF ALL TIME!

I have these in 3 colors, and I’ll be buying the other 2 colors soon. Literally the best underwear I’ve ever owned, the junk pouch is so soft and non constricting but very supportive. PLEASE release more color options, I’ll buy them all!

M
Michael Muehlenbeck
Modal Muscle Brief

They will be great for the Summer!

J
James
Perfect Fit

I have bigger legs and booty, the fit of these is spot on. Incredible fit and the material is very soft. I was blown away as it is hard to find underwear that fits correctly.

E
Eric R.
Awesome product!

Great fit, my boyfriend loves how I look in these.

D
Diego
AMAZING

These briefs are amazing! The fabric is sooo soft and cradle the goods perfectly. It’s like my goodies are floating on a cloud, definitely worth the price!

F
Frank S.
Great fit. Super comfortable

Best underwear I recall having. It is lightweight and cool even on hottest days. Adequate to keep things in place when doing normal activities. I love the product!

G
Gary
Modal Muscle Brief

Good fit and fabric

D
Darren
Amazing comfort

These new modal muscle briefs are amazing comfortable with high appeal. Love the contrast colours, would love to see more colour combinations come out in the future.

D
Darren D
Great feel!

Love the new Modal Muscle Brief, the fabric is soft and conforming, and the color of the waistbands just pop! Hope for more colorways in this new lineup.

N
Nathan Prince
Colors match

I like red... and a bright pale blue... or even a spin of colors would be nice...
I like the cut, which is rare when we look at all the other brands out there... but a longer seem on the pouch and brighter colors would be awesome, maybe even a thread of mixed colors. Enjoy your day!

C
Clay
I luv this underwear!

I just love them. Fit well and super soft! Fit is true to size.

A
Ande
Awesome

Haven't worn briefs this comfy in a while. Pouch is good size and covers your rear.

F
Finn
Best Fitting Underwear. EVER!

Finally a pair of underwear that fits my body and feels great on. These are truly amazing and I would highly recommend 100%.

M
Mark
Model muscle brief

Just received these and they are probably the best fitting and looking brief I have worn. Excellent design and fit

N
Nathan
Modal Muscle Brief

The cut is amazing, supports big muscular legs and a big butt too.

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