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 |
M
I really love these briefs! They really do feel like nothing is on, and not so restrictive. I usually wear a M, but I went with the L based on the reviews and they fit perfectly! Definitely recommend, and I already ordered two more after receiving.
Hi Michael, thank you for your wonderful feedback! We're delighted to hear that the briefs fit perfectly and meet your expectations. We appreciate your recommendation and your continued support! Thank you...
A
Nice fit and feel. Great buy.
J
Worn virtually nothing but these for about 5 years
Thank you, Jeremy, for your continued support and positive feedback. We're delighted to hear you've been satisfied with our Modal Bikini Briefs for so many years!
M
I'd go with a larger size, amazing feel and they sit well, but I'd suggest to go minimum 1 size up; Rain Forrest is a very sexy color, they also wash well.
Totally seamless feel and fabric comfortably snugs around the goodies.
L
These are the most comfortable briefs I think I have ever worn. Buying more soon so I can switch over to only these.
M
Comfy and sexy and so many colors keeps my above avg junk in place well. This is the only underwear and swimwear that I wear.
D
Never received order. It’s been three weeks. I can’t even track them. Not happ
D
Got the grape color. I love this bikini style. Feels and looks great. Wish they would make it maroon next.
R
I have most colours in this most comfortable and stylish of brief products. These briefs are super soft to the skin and give just the right amount of support without being at all restrictive. Every time a new colour is added - I have to buy it, and this helps keep the collection refreshed!
R
Great fabric and fit. The modal is so soft to the skin. These are available in a huge range of great colours too. I have many pairs - and tend to buy the new colours as they become available. Keep up the great work guys!
P
Look good, comfortable to wear.
B
These are great looking bikini briefs that fit well and are very comfortable. The waist tends to slip a bit during vigorous movement, but maybe that is just a reminder to keep my butt in shape.
J
Love jack Adams
R
Very soft with just the right amount of support. Fantastic design and quality! I have orders these 3 times now!
A
I bought these on a whim for Christmas, searching for supportive, sexy, comfy undies for my boyfriend.....and never imagined how much fun they would be! Not only are they breathable, super soft fabric, the cut is very flattering, as is the pouch that ever-so-nicely cuddles "the Boys".They fit perfectly as well!Definitely a LOT of fun getting them off of him! BIg Smile, thank you..Alice
G
I don’t feel the elastic band like other undies.
f
very sort cnd comf able. gi
D
The brief is so comfortable. I almost don't realize I have anything on. Very very comfortable.
J
Ever since i’ve bought my first pair over 6 months ago I have been so comfortable. They are true to size, they don’t restrict, and are buttery soft! I love them. Never going back!
J
The bikinis are extremely comfortable, as if you were not wearing anything, perfect for any occasion
A
Wow, the fit of this product is beyond what I could ever imagine. It’s really important to understand your body’s curvature and knowing what will look flattering to your physique. The bikini cut fits my curves like a glove. I am 5.7, 170lbs ish. I ordered a Large because I do have a bigger lower body. Wish I could post pictures for reference
f
highly suggest you try it.
M
I LOVE these bikini briefs. They are my go to daily choice. The fit is so sexy and comfortable. I love putting them on. The fabric is soft and holds up very well over time. I always wash on delicate and hang dry and that keeps them feeling like new. I have tried every other brand and Jack Adams does mens underwear better than anyone! I'm a bigger guy and was worried I would not have enough coverage but these are amazing how they wrap and support! They come across your cheeks in just the right way to make my but look great and they never ride up or bind. Cannot say enough great things about these bikini briefs. If you are still wondering if they are worth it, the answer is absolutely, 1 million times yes, get them! You are worth it king!
D
Beautiful fit n color. I have many colors in this style
C
Love this bikini! Have 5 different colors
J
Could use more of a pouch in the front. Doesn’t offer the pick me up I desire for a brief that advertises it has a pouch.
B
These feel so soft. Pouch is big enough to hold everything in place, only thing is I think they should come in multipacks and lower the price
JA: Thank you for your post. Please note we do offer multi-packs in our Modal Bikini Briefs. You can find the multi-pack listing when you link the Shop Underwear tab at the top of the site.
J
LOVE Jack Adams brand because of the style, softness and the colors.
c
excellent product; comfortable yet makes one feel confident and sexy; my partner really likes the way i look and will order one in a different color
T
Super fit and feels great against my body.
P
Good quality, excellent fit, and form
F
Really comfortable!
N
Best underwear ever. Amazing quality and attention to detail. You get what you pay for.
