Undershirt under a shirt, what should fit right for men
Short answer: A men's undershirt worn under a shirt should lie flat, not show through and not roll up. It comes down to neckline, length and fabric thickness. Here are the key points so you get an undershirt you forget you are wearing.
Why wear an undershirt under a shirt
Many wear an undershirt under the shirt because it sits between skin and shirt and can take up a little moisture. It can also make a thin shirt less see through. An undershirt chosen for this should be thin enough not to add bulk, but close enough to stay in place.
A neckline that does not show
If you open the top button, the edge of the undershirt must not show. Choose a deep round neck or a V neck if you wear the shirt open. A look at bamboo undershirt for men lets you compare cuts and the depth of the neckline.
Length that stays tucked in
An undershirt that is too short climbs up as soon as you move, and then it serves no purpose. Choose a length that can be tucked into the trousers and reaches over the hip. If it is too long and too loose, it can make folds under the shirt that show on the outside.
Fit at shoulders and arms
The undershirt should fit close enough not to form lumps, but not pull across the shoulders. Sleeveless models give more freedom, while short sleeves cover more. Always test it by lifting your arms and bending forward, so you feel whether the fabric pulls down at the neck or up over the stomach.
A colour that does not show through
Dark shirts hide most things, while white and light shirts reveal an undershirt that is too dark or strongly coloured. Choose a shade close to your skin or a light neutral colour. That way it disappears under the shirt, even in sharp light.
The fabric against the skin
The fabric should feel soft and not cling, especially if you sweat under a jacket. Bamboo in clothing is viscose made from bamboo, and it can absorb moisture and give a smooth surface. Quality varies though, so feel it and read the composition before you buy.
Undershirt and underwear as a set
Many choose an undershirt and underpants that match in fabric and feel, so there is no difference in how they sit through the day. Look at bamboo underpants for men alongside the undershirt. For everyday wear you can put a polo over it instead of a shirt, such as bamboo polos for men, if you prefer a relaxed style.
Washing so the undershirt keeps its shape
Wash the undershirt according to the care label, and avoid high temperatures so it does not shrink. Turn it inside out so the surface lasts longer. Dry it flat or on a hanger if the label recommends it, so it does not lose shape and start to roll at the neck.
Frequently asked questions
Should an undershirt be tucked into the trousers?
Yes, that is usually the most practical. Choose a length that reaches over the hip, so it does not climb up when you move or sit.
What colour undershirt is best under a white shirt?
A shade close to your skin tone or a very light neutral colour is usually best. Dark colours can show through, especially in sharp light.
How do I stop the undershirt showing at the neck?
Choose an undershirt with a deeper neckline than the shirt opening, for example a V neck. Try it with the shirt before you wear it for a whole day.
See our range of bamboo shirts for men.
