Skip to main content

The Manual may earn a commission when you buy through links on our site.

Mack Weldon Partners with J. Crew to Bring Us All Prime Cotton Underwear

If you’re a regular reader of The Manual (we’re going to assume you are since you’re already here), you’re probably familiar with our near fanboy status when it comes to direct to consumer men’s essentials brand, Mack Weldon. From joggers, to underwear, to undershirts, to socks, to our favorite travel backpack, Mack Weldon’s clothing essentials are known for their luxurious and premium technical fabrics, simple, yet modern design aesthetic that often feature an athletic cut and totally relaxed vibe.

Recommended Videos

And now, for the brand’s latest foray into the world of brick-and-mortar retail (their first was also selling regular Mack Weldon products in J. Crew stores), Mack Weldon is launching their new Prime Cotton range of heritage-inspired underwear made exclusively for well-to-do, middle-class contemporary casual brand, J. Crew.

“As a growing company we look to partner with like-minded brands to further customer awareness,” said Michael Isaacman, co-founder of Mack Weldon. “J.Crew’s innovative men’s shops, coupled with their unique ability to curate third-party brands alongside their own product, made this an ideal match.”.

mack weldon j crew prime cotton collection
Image used with permission by copyright holder

The Prime Cotton line features a $24 trunk, a $28 boxer brief, and a $38 undershirt. All the pieces in the collection are made from premium, long-staple cotton that has been infused with an inner core of nylon, created to regulate body temperature. As body heat rises, the Prime Cotton product works to keep the body cool and, according to Mack Weldon, does not currently exist in any other cotton products today. This collection is great for guys who sleep hot and find themselves waking up sweaty more often than not. But you don’t have to be asleep to enjoy the cooling effects — the underwear will keep you chilled even just walking to and from work or lounging around the house.

“We wanted to take this idea of ribbed underwear that speaks to J. Crew’s heritage style, and update it with Mack Weldon technology,” said Matthew Congdon, Mack Weldon’s vice president of design, in a statement. The combination of Mack Weldon tech and J. Crew styling couldn’t work any better. The ribbed cotton along with buttons and a more traditional underwear fly offer up luxurious-looking style and total comfort.

All three Prime Cotton pieces are available today at J. Crew online and in select store locations.

Interested in finding even more underwear that’ll keep you looking and feeling cool all seasons long? We’ve got all the best options right here.

Chase McPeak
Former Digital Trends Contributor
Chase McPeak is the former Lifestyle Editor. Chase regularly appeared on Beards, Booze, and Bacon: The Manual Podcast where…
The new Hublot Big Bang Meca-10 comes in a smaller casing
Check out the new materials featured on the Big Bang Meca-10
Big Bang Meca 10 Collection

As a timepiece that dates back to 2016, Hublot MECA became popular due to its pioneering design. Now, the iconic brand has debuted a new version — and it's smaller than the original design. In keeping with the trend toward smaller watches that became prevalent in the past year, the original version had a 45 mm casing, while the 2025 edition comes with a 43 mm casing—a watch that can comfortably sit on a wrist.

Big Bang Meca 10 gold version Hublot / Hublot

Read more
Shoes in the washing machine? Here’s how to wash shoes safely and quickly
A guide on how to wash shoes
pair of shoes, shoe fill, and shoe brush on a table

Keeping your shoes in top shape is more than just for a clean appearance. Having washed and neat footwear helps them last longer and avoid foot problems. From odor to blisters, many issues can arise with unkempt shoes. With bacteria that can stick to your footwear and travel throughout your home, keeping your shoes clean from the inside and out can help lower the chance of catching a series of ailments.

Although cleaning your shoes by hand is the most common and popular option, it’s not always the most time-effective. Between hand washing your footwear one by one and letting them air dry, you could be out of your favorite shoes for some time. Besides the loss of time, hand-washing only ensures your shoes are as clean as the work you put into them. This could mean missing a few parts inside or outside and still being left with stains and marks. With the following steps and care, you can learn how to wash shoes in your washing machine for a pristine look in one wash cycle. 
How often should you wash your shoes?

Read more
Hublot’s Big Bang Tourbillon Green SAXEM: A luxury watch with a bold twist
A new Big Bang Tourbillon in green SAXEM
Big Bang Tourbillon Automatic Green Saxem

Meet the Hublot Big Bang Tourbillon Automatic Green SAXEM, a new watch that was presented to the world during the LVMH Watch Week.

As the name hints, this watch has a striking green hue that’s quite compelling to the eye. It’s manufactured from a translucent material, popularly known as SAXEM, which offers clear views into the caliber and elements that sit at the heart of the watch.

Read more