Mack Weldon Discount Codes & Offers in November 2026
Browse today's selection of working Mack Weldon coupons, tested by our team


Mack Weldon is a New York–based men's basics brand founded in 2012, best known for performance underwear, AIRKNITx tees, and Silver-fiber socks. Most of their discounts come from seasonal sales and discount codes. When you're shopping with them, remember that you cannot use multiple promo codes in one order. Have any questions? Start with Mack Weldon's FAQ or contact support through live chat from 10 a.m. to 5 p.m. EST. You can also email [email protected] or text 332-291-9683.
Mack Weldon already gives you 30 days to send back unworn, unwashed items with no restocking fee. But the prepaid return label only stays free if you select Checkout+ when you place your order. The price shifts based on your cart total, and it covers any return or exchange shipping later, plus protection if your package gets lost or stolen on the way to you. Checkout+ is worth it when you're trying a new fit for the first time, ordering a couple of sizes to compare, or shipping to a spot where packages go missing.
Final-sale items can't be returned. Some categories have stricter rules, too. For example, underwear must stay in its original packaging under the standard policy.
The Try On Guarantee covers one pair of underwear from your first order, even after you've worn and washed it. You get a full refund or a size swap within 30 days of delivery. To start a refund or swap, head to the Mack Weldon returns portal.
The standard return policy covers any item in your order, but everything has to come back unworn, unwashed, and in its original packaging. The Try On Guarantee works differently. It only applies to your first order and only covers one pair of underwear. In short, the regular policy protects you if you change your mind before using something, while the Try On Guarantee lets you test the fit in real life and still get your money back.
This works for new customers who have never tried the brand and aren't sure which size or style fits best. Buy a single pair first, see how it wears, then move up to a 3-pack or 6-pack once you know what works. If you already own a style that fits and you're just restocking, there's nothing extra to gain from it. The guarantee only applies to first orders.
Get 20% off your first Mack Weldon order of $125 or more when you sign up with your email, then redeem the offer as instructed during checkout. Offer typically applies to new subscribers and first-time purchases only. Discount applies to eligible items and may exclude gift cards, select launches, and other promotions. Valid for US customers for a limited time. Not combinable with other discounts. Offer may change or end without notice. Online redemption only; availability may vary. We verified in October 2026 that newsletter signup offers are an ongoing promotion for new customers.
Valid on sale styles only. Available to all US customers.
Send your referral link to a friend. Your friend gets $20 off their first order of $75 or more. After your friend places a qualifying first order, you earn $20 in store credit for that successful referral. Mack Weldon may change or end the referral program at any time.
The 20% discount is valid on underwear packs only. No minimum purchase amount is required.
Receive 10% off select Mack Weldon bundles on qualifying underwear, socks, and apparel, as marked. Discount applies to eligible bundle pricing only and is calculated before taxes and shipping. Excludes gift cards and prior purchases; bundle contents and eligibility vary by product page and may not be combined with all other promotions. Subject to stock availability.
Reach a $150 cart total and free standard delivery is unlocked automatically. This shipping waiver can be combined with other eligible discount codes or markdowns. Expedited and overnight methods are excluded, and geographic limitations may apply.
Get 25% off eligible Mack Weldon purchases of $125 or more by applying the promo code provided at checkout. The discount applies to qualifying items only and may exclude select products, bundles, gift cards, and prior purchases. This limited-time offer cannot be combined with other coupons or promo codes and may change or end without notice. This code was last verified on October 27, 2026.
Limited time offer. A $250 minimum spend is required.
Enjoy 80% off any order through this special promotion from Mack Weldon, featuring men’s underwear, apparel, socks, activewear and performance essentials. Enter the coupon code provided during checkout on the website to apply the discount. We tested the checkout flow on October 5, 2026 and found the discount appeared only on eligible full-price items.
Add your items to the shopping cart and click "Checkout."
On a desktop computer, look to the right side of the screen for the "Discount code or gift card" box.
On a mobile device, tap "Show order summary" at the top of the checkout page to reveal the text box.
Paste your code and click "Apply" to see your new total.
You can only use one code per order, so do not try to stack a welcome discount with a Community Heroes code. Compare your available codes on our page and paste the best one into the box before paying.
Mack Weldon provides free shipping when you spend more than $150. For orders below that, the standard shipping fee is $8.
This strategy works best when your cart is already near $140. In that case, adding a pair of socks ($14) is smarter than paying for shipping. If you're only buying a single shirt ($52), just pay the $8 standard delivery charge. They also offer two-day shipping at $10 and next day shipping at $30.
For frequent buyers, working towards the Silver tier is the smarter long-term play, since it lowers the free-shipping threshold by $50 and pays off across multiple orders. Once you reach the Black tier, you get permanent free shipping.
Mack Weldon has two ways to bundle and save, and both knock money off without a code. The discount shows up on its own at checkout, and the savings tiers are the same on both pages: 5% off at 3 items, around 7% off at 5 to 6 items, and 10% off at 9 items.
The difference comes down to how much control you want over what's in the pack. More on how each one works below.
Bundle & Save page: Ready-made packs the brand puts together, like a 3-pack of Silver tees. The price per item is usually lower than buying the same shirts one by one, and you don't have to do any math.
Pack Builder: You choose the fabric, size, color, and quantity yourself. When we tested it recently, items had to come from the same category, so you can build a pack of tees or a pack of underwear, but not a mixed pack with socks, tees, and underwear together. This is the better option when you want specific colors or sizes the pre-made packs don't offer.
The welcome offer is often a stronger discount than the smaller bundle tiers. It's worth using that first before you build a pack of three or four items. If you only need a single replacement shirt, skip the bundle page. Adding extra items just to hit the three-item minimum will lower your per-item cost, but it will also double or triple your final checkout total.
MW Rewards is a free loyalty program, and at the base Blue tier, it gives you about 5% back on every purchase. You'll earn 1 point per $1 spent, with 100 points converting to $5 off and a cap of $50 off per order. The real savings, however, come from climbing the tiers. Spend $500 in a rolling year to reach Silver, which doubles your points and unlocks free shipping on orders over $100. Hit $1000 in a year to unlock Black, which triples your points and includes always-free shipping. That works out to roughly 5%, 10%, or 15% effective cashback, depending on your tier.
This program isn't for one-time shoppers. Points expire 12 months after they're earned, and you need 100 points ($100 in spend) just to unlock a $5 redemption. However, once your rewards are activated in your account, they won't expire.
Mack Weldon also doesn't allow you to stack reward codes with other promo codes. Save your $5 to $50 rewards for full-priced restocks, and skip using them during major seasonal sales when a public 20% off code will save you more.