Sweat and White Shirts – How the Undershirt Saves the Day

Short answer: A thin undershirt in bamboo viscose is the most effective weapon against sweat marks on white shirts. It absorbs and spreads the sweat before it reaches the shirt, and at the same time it inhibits the bacteria that create odour.

Why are white shirts so exposed?

White shirts show everything: wet patches under the arms, yellow deposits after repeated washes and transparency at the slightest hint of moisture. The problem is not the shirt, but that the sweat hits it directly. With an undershirt as a middle layer, the sweat never gets there. See the selection of bamboo undershirts for men.

Why bamboo works better than cotton

A cotton undershirt soaks up the sweat but holds on to it, so you walk around with a wet layer against your body. Bamboo viscose can take up large amounts of moisture and move it on so it evaporates, and the material dries quickly. You can read about the mechanism behind it in bamboo and temperature regulation.

Three practical tips against sweat marks

Choose a close-fitting undershirt in grey or skin tone that does not show through the white shirt. Change your undershirt every day, so the bacteria never take hold. And wash both undershirt and shirt at 30-40 degrees as soon as possible after a sweaty day. A breathable bamboo T-shirt can do the same job on days without a suit.

Frequently asked questions

Does an undershirt help against sweat marks on your shirt?

Yes. The undershirt catches the sweat before it reaches the shirt, so you avoid visible wet patches and yellow marks under the arms.

Which undershirt is best against sweat?

A close-fitting undershirt in bamboo viscose. The material moves moisture away from the skin, dries quickly and inhibits odour bacteria.

Can you see an undershirt through a white shirt?

If you choose a thin style in grey or skin tone, it is virtually invisible. White undershirts, on the other hand, can shine through.