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: 13 (87%)
- 4 stars: 2 (13%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
Spot on sizing. Perfect fit
A very comfortable and supportive fit. The extra wide band feels wonderful and does not bite like traditional jocks, yet there is sturdy and strong support for the boys. A nice variety of non-traditional colors also is noticed in the lockerroom. The need to hand wash this product is not a huge deal. This is the most comfortable jock ever.
Hi Eric, we're thrilled to hear how much you enjoy the No.1874 Jockstrap! Thanks for sharing your positive experience and for noticing the variety of colors. We appreciate your support!
I always forget Im wearing a jack adams usa jock because its so comfortable. Not like a kitchen scrubby, a soft, supporting strap Ican live in all day. I work in Grocery, so lifting, stretching, pulling ,pushing....keeps me in place and doesnt smell like a swamp when I change at night. BRAVO Jack Adams USA!!
Hi Gregory, we're thrilled to hear how comfortable and supportive your Jockstrap is during your busy workday! Thanks for sharing your positive experience with Jack Adams. Stay comfortable!
I'll start this review by stating I've owned just about every brand of jockstrap there is on the market. I say that so that when I say this is the most amazing jockstrap you'll understand how great this one is. The sizing is right on and a Medium was perfect for my 32/33 in waist.
This is my all-time favorite jockstrap. I'll be back for more very very soon!
The waistband is a dream come true . It's thick enough to stay in place. It's stretchy enough to move with you and doesn't cut into you at any time when bending over.
The pouch is supportive just like an athletic jock should be. Your goods aren't going anywhere in this bad boy and you'll stand out in the locker room easily.
Wow. Been wearing a strap since I was 14, Im 52 now. I dont think Ive ever had such a good fitting, super comfortable jock, except the old cotton BIKEs from the 60s and 70s. Doesnt stretch out, breathable, sometimes I forget I have it on, its so natural. Keep up the good work, Jack Adams. I would like to see a Kelly green jockstrap from you guys some day.
By far, the most comfortable jock I've ever worn! Will definitely buy more.
This is the best jockstrap made. Period. Great fit and quality!
This jockstrap is nothing short of great. I love the soft knitted pouch. Most jocks feel like a kitchen scrubber on my junk, not the case with this style. Well done!
After my last few experiences with inexpensive and cheap quality jockstraps that last about 10 wears and then start to unravel; I really took quite a long time to shop around on this venture. I normally wear a medium, but I checked the sizing chart and went with a large size. Wow! This jockstrap exceeds expectations and has only improved on the classic design. The wide waistband fits very nicely and doesn't pinch, bunch or sag. The front pouch is very comfortable and I can barely feel the leg straps. Jack Adams got it right on the form, and when it came to actually using them in function they didn't miss either. This jockstrap hugged and moved with me underneath my yoga pants and accommodated every pose without feeling weird or bunching. This is the best jockstrap I have invested in in a few years and the value for the price is worth a few of them.
SO GOOD. Been wearing a strap since I was 14 (I'm 51 now), this strap is far and above all others! I like Cellblock too, but this seems heftier, sure to soak up all your sweat, guys. Wore all day, not too heavy taking it off, meaning its wicking off your nasty sweat. Love this jock, will try to get all the colours
Super jockstrap, very comfortable, like the wide waist band & great fabric, Purchased three colors, plan to get all colors Would like to see maroon & pink added to selections.
I only wear Jockstraps and I have every brand under the sun. This jockstrap is hands down the best jockstrap I have every worn. The pouch material is soft and feels good on my junk. Jack Adams has my business. Also they have great customer service!
I love this jock for a lot of reasons, mostly because of the feel... the thick band is nostalgic and the almost lighter, hand-feel of the waistband is nice. The knit pouch is cool too although as a taller, athletic guy, I wiSh the elastic pouch had ben lined with elastic as regular pouches are often done. Given that the pouch is a tighter knit it doesn't really need a lot of recovery bit a little would be beneficial to keep it from gaping at the sides.
I love the masculine feel of this jock. Super comfortable...
Ty
Classic, very good jockstrap (preferable in appearance to me than most all the new fashion jocks on the market today). A+ for the appearance and feel of the fabric composing the pouch.
My only compaint concerns the waist size. I have a 36-38 waist --- I got the XL size as recommended by the size chart but I don't feel that it fits quite as snug as it should.
Waist band fits great pouch was a little tight wore it for 4 hours before the gym pouch loosened up pouch is much softer than MC David.
Wore it a second time at the gym very comfortable straps don't bind hope it doesn't shrink after a months washing like bike does I'll buy more if it stays in shape after a couple of months. Thanks guys!