Jumping JohnMack Weldon is a company that has been in the new. Literally, they were written up in the New York Times for using more realistic guys in their ads. This one thing gave me hope that the underwear would match the coverage (no pun intended) over the last few years. They are not flashy or have crazy designs. Mack Weldon is a more classic styled underwear line.

Mack Weldon sent us several briefs to try. Alex already posted his video of them about a week ago. Now it’s my time to try. When I took them out of the package the first thing I noticed was the bright orange. UNB James loves the color orange, but I’m not so big on it, but the brightness of it I really liked. The second thing I noticed was the size of the brief. These are more tighty whitey style than I am used too. It always scares me to try a brief this size. I get flash back to previous pairs that loose their shape and become baggy through out the day.

I reluctantly gave them a try. I just knew I would be cursing my underwear choice through out the day. It wasn’t until about 3:00 PM that I realized the pair was doing great and not loosing its shape at all. I didn’t do anything crazy just daily activities. The brief was M00B02-MY_1made out of quality cotton that conformed to my body. In the back they had something I didn’t notice till later. There is a fabric panel at the top in the back, sort of a crescent moon shape. I would assume this keeps the back from getting baggy and really be form fitting. This pair surprised me. One last thing is on the fly there is a super small branding tag that is just a cool touch

The fabric this brief felt amazing. I knew it wasn’t pure 100% cotton and has some spandex mixed in. The official list of fabric is 47.5% Long Staple Cotton / 47.5% Modal / 5% Lycra. THAT’S IT! Modal! Modal is one of my favorite fabrics for underwear. The way they mixed this in was brilliant. Previous pairs of Modal can be very thin and fragile. Get it caught on a zipper and that pair is done. This mix is really great and Mack Weldon out did themselves.

Sizing is always a big issue. I’m 6’4” and about 245 so not the small guy by any means. I currently have roughly a 38 inch waist. The sizing for the large I reviewed is 34-36. I was surprised when I looked at the size chart. Granted they were a little tight but they fit great. I prob could have used a larger size but it didn’t bind or make me feel constrained through out the day.

Mack Weldon really impressed me with the undies. This pair could have gone horribly wrong. They took time in sourcing fabrics and construction so my hat is off to the crew at Mack Weldon. Would I buy more undies from them? Absolutely! It’s a classic style that every guy needs in his drawer!

  • Amazing Modal/Cotton Fabric
  • Great fit through out the day
  • Classical Styling


  • Maybe too plain for some of our readers
  • Not in super bright colors more subtle color palate


  • Fit – 8
  • Sizing – 9
  • Construction – 9
  • Styling – 8
  • Performance – 9
  • Overall – 8.6

Mack Weldon furnished this pair for review. You can find the briefs on their site for $19.50.


Tim is the founder and editor of Underwear News Briefs. He has been an avid underwear fan since the age of 14! He founded UNB in 2008 and has continued to broaden his underwear love over the years

1 Comment

  1. Lee Martin Reply

    I just received mine in the mail today and can not wit till in the morning to try it on I did a sneak try earlier and they felt good

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