White long sleeve T-shirt under knitted jumpers

Short answer: A white long sleeve T-shirt under a knitted jumper gives a soft layer between skin and knit, so the jumper feels less scratchy. Here is how to choose a white long sleeve T-shirt for layering that neither peeks out nor bunches up under the sleeves.

Why a T-shirt under knitwear

Knitwear can be thick and a little rough on the skin, especially at the neck and wrists. A soft T-shirt underneath creates a layer that makes the jumper easier to wear. It also keeps the knit cleaner, because it takes most of the contact with the skin.

A white long sleeve T-shirt and fit

A white long sleeve T-shirt under knitwear should fit close enough not to bunch, but not squeeze. The sleeves should follow the arm without gathering in folds at the elbow. See bamboo T-shirts for women and compare fit and length before you choose.

Neckline and what peeks out

Choose a neckline that suits the jumper over it. Under a crew neck knit, a crew neck T-shirt suits, and under a V neck, a V. A white edge that peeks up can look neat if you want it to, but it must be perfectly even if it should not distract.

Sleeve length and wrist

The sleeve of the T-shirt should end at the wrist, so you do not see it pulling up under the knit. If the sleeve is too long it bunches, and if it is too short the arm gets cold. Raise your arms and bend the elbow to see whether the sleeve stays in place.

White under dark knit

White under a dark jumper can show a clear contrast at the neck and wrist. That can look neat, but think about whether you would rather hide it. If the knit is thin, white can show through, so check in front of a mirror in daylight.

The fabric that lies under the knit

A thin, soft fabric gives less bulk under the jumper than a thick one. Bamboo viscose feels smooth and soft, and the knit slides over it more easily. Run your hand over the fabric and see whether it feels pleasant against your neck and wrist.

Washing and care of a white layer

Wash white T-shirts separately so they do not pick up colour from knitwear and other clothes. Use a mild detergent and a low temperature, and avoid strong tumble drying. White can turn yellow over time if washed wrongly, so follow the care label and air the clothes between wears.

Combine the layer with the rest of your clothes

A good layer under knitwear belongs with the rest of your clothes. See bamboo underwear for women for the innermost layer, and bamboo sweatpants for women for days when you want things soft and calm. That way the layers fit together from head to toe.

Frequently asked questions

Should a T-shirt under knitwear be tight?

It should fit close enough not to bunch, but not squeeze. The sleeves should follow the arm, and the edge at the neck should lie flat.

Can white show through a thin jumper?

Yes, especially under light or thin knit. Check in front of a mirror in daylight, and choose a skin tone T-shirt if you want to avoid it.

Which neckline suits best?

The one that suits the jumper over it. Crew neck under crew neck, V under V. That way the edge does not peek out unexpectedly.

You can find the full range at Copenhagen Bamboo.