Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in ocean depths (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in chicory (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in ibiza blue (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in green cyan (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in abundant green (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in sky blue (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in innuendo  (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in white (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in international blue (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in nude (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in veri peri (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in beetroot purple (profile view)
Man standing wearing a pair of Jack Adams beetroot Modal Streamlined Bikini Boxers (profile view) on a white background.
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in black (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in deep blue (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in forrest (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in orange (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in heather grey (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in military olive (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in french navy (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in deep mahogany (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in lava falls (profile view)
Shirtless man standing in front of a white background wearing a pair of Jack Adams Modal Streamlined Boxer in cendre blue (profile view)
Man wearing cedar Jack Adams Modal Bikini Boxer (profile view) on a white background
Man wearing a cedar Jack Adams Modal Bikini Boxer(back view) on a white background

Streamlined Modal Bikini Boxer

Sale price$38.00
/
Shipping calculated at checkout.

Size
Color
  • Low stock - 9 items left
  • Backordered, shipping soon

Our best selling streamlined Modal Bikini Boxer is engineered for the days you want zero distraction under your favorite pants or shorts. The silhouette stays sleek and smooth, delivering slick contours and virtually no fabric bunching thanks to a luxe, high density micro-modal that stretches and recovers exactly where your body needs it.

Cut from TENCEL™ Modal, a fiber derived from sustainably grown beechwood, this fabric is naturally breathable, unbelievably soft, and produced using recyclable, earth friendly solvents. When blended, it brings a subtle luster, a silk like hand feel, and wrinkle resistance that keeps everything looking sharp.

Careful—slipping out of these might be the hardest part of your day.   Shop the Collection.

SIZE - True to size
  • Streamlined Boxer.
  • Low rise cut, falling below the natural waistline.
  • No fly.
  • Pouch: Double-ply with flat seams in center and on sides.
  • Breathable lightweight micro-modal that stays cool, feels ultra-soft, and is comfortable for all day wear.
  • Natural wicking fabric, keeping you dry and cool throughout the day.
  • Waistband: 3/4" fabric covered elastic
  • Size: Model is 6’ 1” and is wearing a size medium.
  • Fabric: 95% Modal, 5% Elastane
  • Shrinkage and pilling resist.

Get free shipping for US orders over $125+

Discreet packaging: plain poly bag or brown box.

-Shipping Details

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

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: 21 (84%)
  • 4 stars: 3 (12%)
  • 3 stars: 0 (0%)
  • 2 stars: 1 (4%)
  • 1 star: 0 (0%)
D
Dan

These need better quality control. I bought several pairs an one had stitching come undone after two or three uses. Another (my favorite color) developed a hole in the fabric after two washes. Don't get me wrong - these fit and feel great, but they should last longer than just a few wears.

Hi Dan, thank you for sharing your feedback. We're glad you like the fit and feel, but we're sorry to hear about the quality issues as we had no issues prior. We'll pass your comments to our team to improve durability.

Please reach out to our customer service team and we will try our best to right the issue. Thank you again for letting us know!

We appreciate your support and hope to serve you better in the future!

R
Riley M.
Best Underwear

This is the best underwear I’ve ever owned. Will absolutely be buying more. Hopefully this product stays around for the long run.

D
David M.
Great fit, pilly material

I love the way these look and feel. However, after only a day of wearing them, they are already starting to get pilly. And I only washed them by hand in cold water and let them air dry. Nevertheless, I love the look and feel and so does my wife. :)

R
R
Best Undies

These are the best underwear I’ve ever owned. I’m 5’10”, 170lbs and they fit great! Will be buying more in the future.

R
Ron
Modal bikini boxers

These fit perfectly! Great colors, easy to rinse and hang to quickly dry.

R
Riley
Best Underwear

This is the best underwear I’ve ever owned. I absolutely will be buying more in the future. I am 5’10, 170 lbs., and a medium fits perfectly. It can occasionally ride up slightly but I never notice until I am changing.

T
Tim M
Bikini Boxer

These are lighter than air and I love the fabric...I rated a four star as they tend to ride up a bit in the rear

J
Joshua
Comfortable!

Great product!

J
Jason
Best Boxer

I wear these daily, can't recommend them enough as the perfect pair of boxer briefs. No riding up, no adjusting, no issues.

T
Thomas Black
Streamlined Modal Bikini Boxer

Comfortable, great fit, and well priced

P
PG
Bikini Boxer

Pros: Comfortable, good fitting, stays in place, soft, fast drying.
launders well.
Cons: no fly

T
Tony Wasser
Review

Much better fit than large, anyway I can still exchange first pair purchased? Fabric and color is great. Thx.

A
Andrew Boehm
Lightweight & silky smooth

I mean, I’m not saying you should rub butter all over yourself, but if you did, the feeling may be comparable to this pair of boxers. Incredibly lightweight, yet supportive, smooth, and stylish. JA does it again!

M
Michael
Comfy boxer

These feel so great. They fit prefect.

S
Sebastian
Bikini Boxer

The material is nice and lightweight. Though, I do wish there are smaller sizes available. I’m a 26” waist and a size S was just slightly loose on me. Overall, a good product and the customer service was very helpful!

N
Nathan Rodriguez
Bikini Boxer

Best underwear ever. Amazing quality and attention to detail. You get what you pay for.

G
Günter
Exceptional quality and fit

Extremely comfortable. Will have to get more.

M
MICHAEL A BOYLES
Bikini Underwear

Really the best underwear, almost like wearing nothing, yet great support and feel. Excellent product.

D
Diego
Amazing bikini boxers

Love these pair of bikini boxers!! The fabric is sooo soft yet supportive. The cut of the boxers accentuates the goodies but provides the right amount of coverage and support. You can wear these on a date night or under everyday clothes. These Jack Adams Bikini Boxers are sooo amazing and perfect that I have 5 pairs in different colors.

J
Justin B.
Perfect!

The best yet. Good fit.!! Soft and comfortable!

M
Matthew Collins
Comfy

Like wearing nothing @ all.

K
KC Milles
Super Comfy

Very comfortable and accentuates your "features" without being overly risque. Excellent for everyday wear and just lazing around in.

V
Verified Customer
Awesome Fit

Just like my other Jack Adams underwear, these are a great fit and very comfortable - probably the best feeling underwear I currently own. The fit is true to size and accentuates everything nicely.

B
Believe in yourself.
Fits

These made me feel as attractive as the model. They fit perfect and compliment everything nicely. Jack Adams spares no expense in delivering comfort and style.

A
Adam
First time buyer

I was a little nervous when I made my purchase. Once I received and gave them a try I became a true believer. Amazingly soft and 5 stars for the fit. I'll be back.