The Airknitx is for days that demand maximum performance—be it a grueling workout or a sweltering commute. This is Mack Weldon’s lightest and most breathable underwear, specifically engineered to target airflow and wick moisture. It feels more like a performance base layer than everyday cotton, making it the perfect foundation for high-output activities.
Features
Engineered with targeted cool zones to boost airflow and keep you dry
Features a no-roll waistband for a secure fit that stays in place
Includes stay-put legs to prevent bunching and riding up
Built with a supportive flyless pouch for maximum comfort and support
Treated to be moisture-wicking and odor-fighting, keeping you fresh all day
Sizing
The Airknitx Boxer Briefs fit true to size. Take your usual boxer brief size or size up if you prefer a looser fit.
For the best personal fit, choose size based on your waist size
Body Measurements
S
M
L
XL
Waist
28-30
31-34
34-36
36-40
Inseam
5
5
5
5
All measurements are in inches.
How to Measure
- Your Waist: Measure around your waist where the top of your underwear sits
- Garment Inseam: Measure from the crotch seam down to the bottom of the leg hem, following along the inside of the leg
Materials & Care
50% Polyamide, 33% Polyester, 17% Elastane
Machine wash cold with like colors, tumble dry low
Made in Egypt
About Mack Weldon
Mack Weldon is a New York-based brand dedicated to engineering menswear with relentless innovation, smarter design, and an uncompromising commitment to comfort. By blending high-performance fabrics with natural fibers, they create elevated everyday essentials built for the long haul.
