Will these tanks hold their shape after multiple washes?

Yes. The stretch rib knit is engineered to maintain its shape without sagging or losing elasticity, even after hundreds of washes and heavy use. You're getting a tank that performs consistently wash after wash.

Can I wear this as a standalone gym tank or does it only work under dress shirts?

You can wear it either way. The 18-Hour Jersey fabric and rib construction work as a fitted undershirt under dress shirts or as a standalone tank top for the gym. The fabric breathes well and moves with you in both applications.

What makes the 18-Hour Jersey fabric different from standard tank tops?

The 18-Hour Jersey is our signature fabric that delivers softness and durability without overheating you. Combined with the stretch rib knit construction, it is designed to stay comfortable through a full day of wear or intense workouts without breaking down.

How should these tanks fit?

They fit as a fitted undershirt that won't bunch or shift under your clothes. The stretch rib knit keeps them in place under dress shirts while still allowing freedom of movement for gym use.

Are these machine washable and dryer safe?

Yes, machine wash cold and tumble dry on low. The stretch rib knit holds up to regular washing and drying without degradation.

3-Pack 18-Hour Rib Tank Undershirts

Name: 3-Pack 18-Hour Rib Tank
Brand: Mackweldon
SKU: VB18RT-WHITE-S
Price: 91.2 USD
Availability: OutOfStock

IN CM

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Micro-Brushed French terry

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

image of man wearing navy blue sweatpants

Streamlined Fit

So you can wear them anywhere.

close up of the waist band of ACE sweatpant

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.