JBS undershirts, the neckline and length when the shirt must not show them
Short answer: JBS undershirts need a neckline that sits low enough to stay hidden and a length that stays in the trousers. Those are the two things that decide whether the undershirt stays invisible under a shirt. Here is a simple guide to neckline, length and fit.
The neckline must sit below the shirt collar
If you are looking for JBS undershirts to wear under a shirt, the neckline is the first thing to check. It should sit lower than the top shirt button, so the edge does not peek out when you open the collar. A round neck is often easy to hide, while a high neck can show.
See the range under JBS
Under JBS you can compare the undershirts that exist and see which necklines and lengths are available. Read the product description for each model, so you know how it is meant to be worn. Choose by the shirt you wear most, and take two necklines if you wear both open and closed collars.
The length must stay in the trousers
An undershirt that rolls up is annoying, especially under a shirt that needs to sit neatly all day. Look for a length that reaches well past the hip, so it stays in the trousers when you move. Sit, bend and reach up, and notice whether it shifts.
The fit is close, but not tight
If an undershirt fits loosely, it forms folds under the shirt, and if it is too tight, it can show as edges on your back. Choose a size that lies close to the body without pressing. Measure around the chest and compare with the size chart, and decide whether you prefer snug or a little freer.
Short sleeve, sleeveless or long sleeve
Sleeveless undershirts can be a good solution under thin shirts where sleeves might otherwise show. A short sleeve covers a little more and is easy to hide under a long-sleeved shirt. Think about which shirt you wear and choose by that, so the edges do not mark through at the armhole.
The colour under the shirt
White shirts show dark undershirts, and dark shirts often show light edges. Choose a colour close to your skin if the shirt is thin, and otherwise a colour that suits the shirt. What shows is less the fabric than the contrast, so check the colour against your shirt in daylight.
The fabric you should not feel
Under a shirt a thin, soft undershirt is an advantage, so it does not add bulk. Bamboo in clothing is viscose made from bamboo, and many find it smooth. If you want to compare brands, you can look at Bamboo Basics, where there is a different selection.
Care and pairing with underpants
Follow the care label and avoid high heat, so the shape holds. Let the undershirt dry flat or hanging. If you want underwear in the same style, look at bamboo underpants for men, so the waistband and the edge of the undershirt do not sit at the same height and draw a line.
Frequently asked questions
How do I hide an undershirt under a shirt?
Choose a neckline that sits lower than the top shirt button and a colour close to your skin or the shirt. Also check that the length stays in the trousers.
Should an undershirt be tucked into the trousers?
Yes, that is usually the most practical under a shirt. Choose a length that stays down, so it does not roll up when you move.
Which sleeve type is best under a shirt?
It depends on the shirt. Sleeveless and short sleeve are most common, and both can work if the armhole does not peek out below the shirt sleeve.
