Items received as gifts that are unworn, unwashed and in their original packaging can be returned for store credit, so you'll need a Mack Weldon account. Visit our Shipping&Returns page for instructions.
Mack Weldon is about the fusion between old-school quality and modern day technology. During our brand creation, we discovered Weldon, an early 20th century underwear company in both marketing and product design - very similar to the brand we were creating. We embraced the name, flipped it a bit and made it ours.
It’s all about the fabric and construction. We use Lenzing Modal® (made of 100% natural beechwood) which is anti-microbial (prevents odor), manages moisture and keeps you cool. When blended with cotton it actually creates a softer, more luxurious feel. Seams are designed to stretch and recover, and we use different materials to keep you comfortable where it counts (18-Hour Jersey, micro pique cool zones, stretch rib between legs).
The 18-Hour Jersey
Our signature blend of long staple cotton, Lenzing Modal and Lycra, is our choice for all undershirts and classic underwear styles. The result? We believe it’s simply the softest most comfortable underwear on the market today. To ensure the least amount of garment shrinkage, the fabric is allowed to rest peacefully, unrolled for 18 hours before cutting and sewing.
Daily Performance Wear
Mack Weldon is designed "for daily wear" but many of our wearers loved how the product performed in the gym and on the court. It's meant to fit close to the body, but never tight or restrictive so it's a good balance of compression and long-term comfort. As for the undershirts, the cotton/modal blend wicks moisture and keeps everything cool on hot days.
So, while not designed specifically to wear for sport, it's nice to know that you can.
Labels on the Outside
When designing the line, we were inspired by some vintage military issue product that had print on the outside of the garment for easy sorting and identification by the wearer. So there is some purpose there that we thought was unique/relevant. Also, we didn't want the lettering to come between your skin and the soft 18-hour jersey.
Mack Weldon is designed in New York and our warehouse and fulfillment center is in Massachusetts.
Our gear is manufactured and sourced in WRAP certified factories across the globe, including Thailand, Peru. China and Vietnam. WRAP is an independent, objective, non-profit team of global social compliance experts dedicated to promoting safe, lawful, humane, and ethical manufacturing around the world through certification and education. The factories are also ISO certified with high quality management systems, ensuring that our products are manufactured in the best way possible to create outstanding results.
You can't really know how great Mack Weldon underwear feels until you try it on, and we're confident you'll agree that it's like nothing else in your drawer. If you disagree, email us at email@example.com within 30 days of your purchase and we'll issue a refund or exchange for the first pair you tried on. For long underwear, we can only offer a store credit. Either way, you keep the underwear and our appreciation for trying it on.
Simply put, you get rewarded every time you shop. The bigger your shopping cart, the more you save on that order. This way you don’t have to wait around for a sale... and we don’t have to bombard you with promotional emails.
- Spend $100 get 10% off
- Spend $150 get 15% off
- Spend $200 get 20% off
Our product is made in one factory so fit should be accurate and consistent. Find the style and size you like, it will be just the same next time you order. If you have questions you can email us your measurements along with how you like to wear your T's and underwear at firstname.lastname@example.org. Otherwise, use the below information to help you select the right size:
T - Shirt
Mack Weldon T’s are Standard Fit – not too loose or too tight. Made to wear on their own, they are designed for comfort. Choose your usual T-shirt size. If you like a more relaxed fit or are between sizes, just go up a size.
Mack Weldon Undershirts have an engineered slim fit, not tight, but cut close to the body for maximum comfort, movement and shape when worn under a dress shirt or sweater. They are also a bit longer so they stay tucked in. Choose your usual size. If you are between sizes, please reference the size chart to ensure the right size.
Our range of Boxer Briefs, Trunks, and Briefs are cut close to the body. Choose your usual size. If you fall between sizes, please reference the size chart to ensure the right size.
These are one size fits all.
We accept PayPal and credit cards backed by the major providers on our website: Visa, Mastercard, American Express, and Discover. Unfortunately we cannot accept some debit cards. If you are having trouble checking out, please email us at email@example.com so we can help.
Drop us a line at firstname.lastname@example.org, we’d love to hear from you. Generally we can respond within 24 hours to emails sent Monday-Friday. However sometimes it may take a bit longer, so we ask for your patience - rest assured we will get back to you.
XT2™ is a fiber created by combining pure silver with cotton. The silver's natural antimicrobial and anti-odor qualities are woven throughout the entire product. It is not a chemical formula or finish treatment, so it never washes out.
We introduce new underwear colors 6 to 7 times a year, and less often for other products. True Black, Blue Night, Bright White and Cloud Burst are "core colors" that don't change. The other colors are seasonal and are not restocked. So if you see a color you like, order it today because it will sell out soon.
3-7 business days for standard shipping via USPS.
2-3 business days for expedited shipping via FedEx Ground to the East Coast
4-5 business days for expedited shipping via FedEx Ground to the West Coast
Orders marked for Next Day shipping before 12pm EST will arrive the next business day.
Our recycle program is currently in beta and is only available for customers who participated in our Spring Cleaning initiative in March 2016. You can learn more about the program here.
Store credit issued as part of the referral program or a promotional campaign are valid for 90 days after they're issued. Store credit issued for a return or exchange are valid for 60 days after they're issued.
Telling friends about Mack Weldon is win-in. You get $20 in store credit for each friend you refer, and they receive a nice discount on their first order. Credits will appear in your account up to 3 days after your friend makes their purchase using your unique referral link. For full terms, please see the "Terms & Conditions" link in the "Track Referrals" page within your account.
Currently we can ship orders placed through our website to the US and Canada. We are working to expand to ship worldwide in the future.