Is the AIRKNITˣ V-Neck true to size?

Yes, but the fit is slim and body-conforming, so it hugs your frame closely rather than draping loose. If you're between sizes or have a broader build, you may want to size up for comfort. If you're lean, your regular size will fit as intended.

How deep is the V-neck, and will it show under a button-up shirt?

The V-neck is cut deep enough that it stays hidden when you unbutton your dress shirt or polo, making it functional as an undershirt rather than visible at the neckline.

What makes this undershirt breathable and moisture-wicking?

The AIRKNITˣ fabric is engineered to pull air in and push moisture out simultaneously, keeping you cool and dry throughout the day instead of absorbing sweat and clinging to your body like a standard undershirt.

Is this good for hot weather and everyday wear?

Yes, it's our lightest, most breathable undershirt and works as a reliable heat-wicking base layer for daily wear, whether you're in warm climates, layering under body armor, or want comfort that doesn't trap heat.

Does it hold odor after wearing?

No. Customers report that the AIRKNITˣ doesn't retain odor, so it stays fresh between washes and performs reliably as an everyday undershirt.

Mack Weldon AIRKNITx V-Neck Undershirt | Breathable Lightweight Fit

IN CM

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Micro-Brushed French terry

So you get an ultra-soft feel (that doesn’t fade in the wash).

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Streamlined Fit

So you can wear them anywhere.

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Perfect Stretch + Recovery

So they’re always comfortable, but never saggy.

close up of ribbed cuff on the ankle of ACE navy blue sweatpant

Back-Ribbed Ankle Cuffs

So they maintain their shape at the hem.

Light as Air.

Our lightest, most breathable fabric brings together two types of nylon mesh to target extra airflow—so you'll stay cool where it matters most.

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