Resteröds bamboo undershirts
Short answer: The Resteröds undershirt is a classic base layer in bamboo viscose. It is worn under shirts and knitwear and absorbs sweat before it reaches the outer layer, so the shirt stays fresh for longer and can be worn more than once between washes.
Classic cut
The style follows the traditional undershirt with a close fitting body and a flat lying neckline. It should not show under the shirt or bunch at the waist. The close cut also keeps the fabric against the skin so it can absorb moisture. See the range in Resteröds.
Under the shirt
A layer between skin and shirt means the shirt can be worn several times before it needs washing. That spares the shirt, often the most expensive piece, and reduces yellow marks under the arms. Under a white shirt, choose a colour close to your skin tone. See the styles in bamboo undershirts for men.
With or without sleeves
Without sleeves adds the least bulk in the armpit, while the style with sleeves protects the shirt best from sweat. If you sweat a lot, sleeves are the safe choice. If you mostly wear knitwear or loose shirts, sleeveless is often enough. See undershirt without sleeves or with sleeves.
In winter
As a base layer under knitwear, the undershirt adds warmth without bulk. The air between layers insulates, and because bamboo viscose moves moisture away, you do not feel clammy going from cold outside to warm inside. The idea is explained in bamboo undershirt as a base layer.
How it should fit
The undershirt should sit close without pulling across the chest and be long enough to stay tucked in when you reach up. If it is too short, it rides up and gathers at the waist. If you are between two sizes, choose by length rather than width.
With the rest of your underwear
The brand also makes underwear and socks in the same material. If you want all your basics from one place, see bamboo underwear for men, where the pieces are collected. They wash the same way and wear at the same pace, so the drawer stays consistent.
Washing
Undershirts are washed after every wear. 40 degrees without fabric softener keeps the fabric able to absorb moisture, as softener coats the fibres. Air drying is kindest to the fabric and the neckline. White shirts stay brighter if washed on their own. See the washing guide.
How many you need
If you wear an undershirt every day and wash once a week, you need at least seven. With only three, you end up washing midweek, and the shirts wear out twice as fast. Buy them all at once so they fade evenly.
Frequently asked questions
Does the undershirt show under a white shirt?
A white undershirt can show through thin white shirts. A colour close to your skin tone is hardest to see, and a round or deep neckline stays hidden with an open collar.
Should I choose sleeves or no sleeves?
Sleeves protect the shirt best from underarm sweat. Sleeveless adds less bulk and suits you if you mostly wear knitwear or rarely sweat much.
Can it be worn alone as a t-shirt?
It is made as a base layer and fits close. Some wear it alone at home, but for going out a proper t-shirt with a looser cut usually looks better.
