Mack Weldon AIRKNITx: Mack Weldon’s Best Value Underwear?

Written By: Eric @, Founder and Head Writer of

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Author’s Note: I purchased all of my Mack Weldon AIRKNITx underwear with my own money. Mack Weldon has not sponsored this post, other than affiliate marketing.

As someone who has extensively written about Mack Weldon underwear and even wore them as my first pair of men’s briefs, I can confidently say that they are both stylish and comfortable. However, being an upper-tier men’s underwear company, Mack Weldon can be quite expensive. With four different types of men’s underwear collections, it can be challenging to select the right one without making an expensive mistake.

In my experience, unless you have a specific reason, I recommend purchasing Mack Weldon AIRKNITx underwear over the other collections. Not only is AIRKNITx Mack Weldon’s best value, but it is also the most versatile. You can wear AIRKNITx as everyday underwear or for strenuous workouts, making it a great investment for anyone looking for comfortable and practical underwear.

In this article, I will explain why I love Mack Weldon AIRKNIT underwear.

Why do I like Mack Weldon AIRKNIT underwear?

My first-ever pair of Mack Weldon underwear was a black pair of 18-hour Jersey trunks. I liked them, so I ended up buying more Mack Weldon. But in my second purchase, I focused on buying AIRKNITx underwear. I am glad I did! Here is why:

  • Fabric: AIRKNITx is made from a polyamide (synthetic) and Spandex/elastane combination, making it smooth against the skin. My requirement for synthetic underwear is they must contain at least 10% Spandex/elastane to ensure enough stretch in the material. AIRKNITx has 14-15% Spandex/elastane, which is lovely.
  • Colors: I love that Mack Weldon doesn’t just have standard black, blue, gray, and white for its AIRKNITx collection. They have many colors, from neons to pastels to basic neutrals. Plus, I love that most colors have a “heathered” look to them for some visual appeal.
  • Style: Also, I love the way AIRKNITx looks! Both my AIRKNITx briefs and trunks look really stylish and I feel great wearing them. They are high-quality underwear that feels sophisticated and stylish, not just another pair of briefs or trunks.

Why is Mack Weldon AIRKNITx the Best Value?

I own all four Mack Weldon underwear collections: AIRKNITx, 18-Hour Jersey, Silver, and Stealth. And having worn all four collections, AIRKNITx is the best value. Here is why:

  • The only cheaper Mack Weldon underwear is the 18-Hour Jersey collection. While 18-Hour Jersey is Mack Weldon’s “everyday” underwear, it is a cotton-modal fabric blend. For the price, guys are better off buying a pure bamboo-elastane or modal-elastane blend. I prefer bamboo and modal as they are much softer than cotton and ideal for everyday wear. Plus, you can get nice David Archy bamboo underwear or Jockey modal boxer briefs – two pairs I wear – for a significant discount compared to 18-Hour Jersey underwear.
I am wearing blue David Archy bamboo boxer briefs.
David Archy bamboo boxer briefs are softer than 18-Hour Jersey and cost a lot less.
  • The most comparable underwear to AIRKNITx is Mack Weldon’s Stealth collection. Like AIRKNITx, Stealth is synthetic underwear designed to be worn in the water during swimming or surfing. I didn’t find Stealth boxer briefs as comfortable as AIRKNITx for regular wear as it is made from a thicker material. Plus, Stealth has limited colors and styles available compared to AIRKNITx, and Stealth is more expensive. So unless you buy Stealth for water-based activities, you are better off with AIRKNITx.
Me wearing blue Mack Weldon Stealth boxer briefs.
Stealth boxer briefs are great for the water, but AIRKNITx is better for everyday underwear.
  • Mack Weldon’s most expensive underwear is its Silver and Silver HD collection. The Silver collection uses silver particles in the fabric to control odor and bacterial growth during sweaty situations. However, the Silver collection is made with cotton, not bamboo or modal. Cotton underwear for around $34-38/pair, even if infused with silver, pushes the value proposition.
    • Mack Weldon came out with the Silver HD collection a couple of years ago, which is modal-based, not cotton-based. I haven’t tried Silver HD yet, but I am glad it is modal-based. But having said that, it is hard to justify paying $40+ for a pair of Silver HD compared to buying a four-pack of David Archy bamboo boxer briefs for the same price – or 75% less per pair.
    • The exception is that if you suffer from high odor, it is worth paying extra for underwear that helps solve this problem. But if it is not an issue, then no need to splurge on Silver.

Read my full Mack Weldon guide to learn more about each Mack Weldon collection, and let me know in the comments your favorite Mack Weldon underwear.

My collection of Mack Weldon Underwear, including Mack Weldon AIRKNITx briefs and trunks.
My collection of Mack Weldon Underwear

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Details of Mack Weldon AIRKNITx Underwear

Like I do with each of my review posts, here are the details about Mack Weldon AIRKNITx men’s underwear:

  • Price: Mack Weldon is a premium men’s brand; its underwear is no different. AIRKNITx underwear ranges from $28-36 per pair. However, compared to the more expensive Stealth and Silver underwear lineup, I believe AIRKNITx is the best value in Mack Weldon’s underwear collection.
    • Remember that using Mack Weldon’s Community Heroes program can save money if you are a First Responder, US Military member, Student, or Teacher. You’ll save 15% off of your first Mack Weldon order.
    • Or you can use Mack Weldon’s Pack Builder to save up to 14% when buying three, six, or nine pairs of underwear. You can also mix and match underwear styles, which is lovely.
  • Colors and Patterns: The fantastic choice of colors is one of the reasons why I love Mack Weldon AIRKNITx underwear. No need to stick with the usual neutral colors of black, blue, and gray. Express yourself with wild colors and sensual pastels. Plus, select AIRKNITx HD underwear have different color stitching for a bolder look.
  • Material and Fabric: Mack Weldon AIRKNITx comprises 85% polyamide and 15% Spandex/Elastane. This is a fantastic material blend, as I require at least 10% Spandex/Elastane for synthetic underwear (including polyamide). The material feels soft and smooth against the skin. Plus, it is quick-drying and moisture-wicking for ultimate comfort.
    • Mack Weldon also offers the AIRKNITx HD collection, which is 86% polyamide and 14% Spandex/elastane. Mack Weldon states that the HD collection has “enhanced moisture wicking” and bolder colors.
  • Flys: AIRKNITx underwear does not include flys. If you need a fly, look at Mack Weldon’s 18-Hour Jersey underwear. Or, if you are left-handed, consider Mack Weldon’s Silver HD underwear, which include a dual-sided fly for lefties!

Mack Weldon Silver HD briefs.

Silver HD underwear includes a dual-sided fly, perfect for lefties!

  • Ball Pouch: Unlike other top underwear brands like Saxx, Shinesty, and Tommy John, Mack Weldon does not offer a proprietary pouch. However, Mack Weldon’s non-separated pouch is quite comfortable and roomy. Read my Guide on Pouch Underwear if you suffer from skin irritation or chafing around your balls and upper thighs.

  • Branded Waistband: I know a lot of guys buy underwear because they want to show off the brand’s logo on their waistband. However, other guys – like me – don’t want to be a billboard for their underwear. Mack Weldon does not put its logo on its waistband, which adds to the sophistication of Mack Weldon’s underwear. Note that Mack Weldon stamps “For Daily Wear” inside each waistband, which is a unique touch.
    • Also, remember that Mack Weldon puts the tag information on the back of the right leg instead of inside the underwear. Keep this in mind because it is very unusual for men’s underwear.

Image showing the tag on the right leg of Mack Weldon underwear.
Mack Weldon’s tag appears on the back of the right leg.
  • Multipacks: You can save by using Mack Weldon’s Pack Builder to create your own three, six, or nine-pack of underwear. You can mix and match styles, so you aren’t just limited to AIRKNITx.
  • Design Country: United States

I love wearing my Mack Weldon AIRKNITx underwear, and I am sure you will too!

My YouTube video about Mack Weldon AIRKNITx underwear
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Eric at

Eric is the creator and writer of He loves boxer briefs and trunks, exploring the new world of briefs, the soft feeling of modal and the lightness of mesh microfiber, and of course writing and researching the world of men's underwear.

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