Ace Sweatpant
Ace Sweatpant
Ace Sweatpant
Ace Sweatpant
Ace Sweatpant
Ace Sweatpant
Ace Sweatpant
Ace Sweatpant
Ace Sweatpant
Ace Sweatpant
Ace Sweatpant
Mack Weldon

Ace Sweatpant

Regular price $66.00 Sale price $78.00
Shipping calculated at checkout.

Made for life beyond the 9-to-5, sweatpants just got a grownup makeover.

  • Micro-sanded french terry for softness and stretch
  • Stealth pocket
  • Ribbed cuffs
  • 95% Cotton / 5% Stretch
  • Machine wash cold and tumble dry low
  • Imported


About Mack Weldon

We founded Mack Weldon because we wanted more out of our basics and always questioned how something so essential could be such a pain in the a** to buy?

The frustration was real and our “eureka moment” happened in a department store aisle full of brands that dominated our top drawer. Surrounded by a mind-numbing assortment of underwear and socks, we realized consistent fit and quality became a game of roulette… so we decided to take matters into our own hands.

We started from scratch and engineered our own fabric. We made sure the design process was meticulous so you can count on the fit being the same each time. We built a world class customer experience. The difference is in the details so we obsessed over every stitch and seam until we’d reached our definition of perfect.

Innovation in textiles

"The Apple of underwear" - The Huffington Post

Our design process will always start with the best fabrics and if we can't find what we need — we'll invent it, like our 18-Hour Jersey. It's then put through an intensive process of trial and error to make sure the fit is as close to perfect as possible. All our products have countless blueprints and fittings because we trust our process and know your expectations.

Designed on Purpose

Our approach was never random and we don't plan on entering new categories without looking in our drawers and closet to find out what's missing. Our products will always be designed with purpose, utility and innovation. They will hold a distinct place in your life because each product serves a purpose and makes you feel good. We are proud to introduce a collection of essentials designed by you and reinvented by us.

Our Factories

Mack Weldon is designed in the heart of NYC with our warehouse and fulfillment center in Massachusetts. Our product is sourced and manufactured in WRAP certified factories across the globe, including USA, South America, and Asia.


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