Undershirt for men under a shirt and what it should do
Short answer: An undershirt for men should be thin, smooth and close fitting so it does not show through the shirt and does not bunch. It should also sit comfortably all day and wash without losing its shape, and that is decided mostly by cut, thickness and size.
What an undershirt for men should do
An undershirt for men is a layer between the skin and the shirt, and above all it should be invisible when worn. It should also sit comfortably, take up moisture and keep its shape after many washes. It is a simple job, but small details in cut and fabric decide whether it succeeds.
Thickness under the shirt
An undershirt under a shirt must not be too thick, because then it can show as an outline through the fabric, especially under light shirts. Choose a thin model with a smooth surface and try it on before you wear it for a whole day. A thin top gives less warmth than a thick one, though, so think about the season.
Neckline and sleeves
The neckline is one of the most important points, because the edge must not be visible with an open collar. Choose a round or deep neck that sits lower than the collar. The sleeves can be short or absent, and both can work as long as they do not peek out under the shirt sleeves.
Bamboo as a material
Undershirts made of bamboo are made of viscose from bamboo, and the fabric gives a soft, light surface against the skin. You can see the range under bamboo undershirt for men and compare thickness and cut. Remember that the thickness of the fabric decides whether the undershirt can be seen through a light shirt.
Fit and size
Measure your chest and follow the size guide instead of taking your usual size. An undershirt should fit close but must not pull across the shoulders and stomach. If it is too big it rides up and folds under the shirt, and if it is too small it can rub under the arms.
Care that keeps the shape
Wash the undershirt as the care label says, usually a gentle cycle, and avoid fabric softener, which can leave a film on the fibres. Turn it inside out so the surface wears less and hang it up to dry. Wash it after every wear, because it lies close to the skin.
When to replace it
An undershirt wears out over time, and you can feel it when the fabric gets thin or the neck goes slack. Replace it when the edge curls, the fabric has holes or the shape no longer holds. If you have several you can rotate them so that each one lasts longer.
How to combine it
For the rest of the first layer you can choose bamboo underpants for men, so you have the same material against the skin all day. On days off you can wear the undershirt under bamboo T-shirts for men and get an extra layer when the weather is cold.
Frequently asked questions
Can you see an undershirt through a white shirt
You can if the fabric is too thick or the edge is visible. Choose a thin, smooth undershirt in a neutral colour and check that the neckline sits lower than the collar.
Does an undershirt need sleeves
That is optional. A sleeveless one does not sit in the shirt sleeves, while one with short sleeves covers more of the arm. Choose what feels best under your shirt.
How many undershirts do I need
It depends on how often you wash. Many have at least five for a week so there is always a clean one and each lasts longer.
