Joybuy Insights

Choosing a white T-shirt for children: size, fabric and sleeve length explained

A white T-shirt for children might seem like a simple purchase, but the differences between models are noticeable in practice. The wrong size can quickly feel too tight, while a shirt that is too thin may be see-through or less suitable for everyday wear. What's more, age labels and fits aren't always used consistently across different brands.

Pay particular attention to these three common pitfalls:

  • Choosing by age alone: a six-year-old child doesn't automatically fit into size 116. Height and chest measurement are more important than the age on the label.
  • Not checking the fabric: "cotton look" doesn't necessarily mean a shirt is 100% cotton. Always check the fabric composition.
  • Confusing sleeve length: a short-sleeved T-shirt, a long-sleeved top and a vest top aren't automatically suitable for the same occasions.

Below, we've laid out the key buying criteria and some specific options side by side for easy comparison.

What to look for when buying a white children's T-shirt?

1. Choose the size based on height and chest measurement

In children's clothing, sizes 110, 116 or 122 usually refer to height in centimetres. The Chicco size guides also provide chest, waist and hip measurements. This makes comparing much easier.

Some examples from the available size guides:

  • Size 110: typically linked to around 5 years old with a chest measurement of approximately 60 cm.
  • Size 116: around 6 years old; the stated chest measurement is roughly 61 to 62 cm, depending on the style.
  • Size 122: around 7 years old; the chest measurement across different Chicco styles is approximately 63 to 64 cm.
  • Size 128: around 8 years old; certain styles list a chest measurement of about 66 cm.

The guides vary from product to product. A Chicco T-shirt size 116 and a Chicco T-shirt size 122 are therefore not simply a larger or smaller version; the stated body measurements can differ slightly between styles. If in doubt, measure a well-fitting shirt or check your child's chest measurement.

For adults, Nike uses a different sizing system. The Nike Sportswear Club T-shirt in size L is intended, according to the product information, for a chest measurement of 104–112 cm. Size XL is listed for 112–123 cm. If you're between two sizes, Nike suggests choosing the smaller size for a closer fit or the larger size for more room. This is a brand recommendation, not a guarantee of the same fit for every body shape.

2. Check the fibre composition

A cotton T-shirt for children is often chosen for everyday wear, for example under a jumper, for playing or as a simple wardrobe staple. The available Chicco styles for boys list 100% cotton. The Nike Sportswear Club T-shirt is also described as being made from 100% cotton.

However, there are more points to consider:

  • Is the composition clearly stated on the product page?
  • Does the label say the shirt can be machine washed?
  • Is tumble drying allowed?
  • Can the white fabric be washed without bleach according to the instructions?
  • Is the shirt intended as a base layer, a standalone top or casual sportswear?

The fabric composition tells you about the fibres, but not automatically about the thickness, stretch or how the shirt will hang after several washes. So also check the product photos, available sizes and care information.

3. Match the sleeve length to how it will be used

A long-sleeved T-shirt for children is practical as an extra layer in cooler seasons or under a coat. The Chicco long-sleeved tops are available in sizes from baby sizes up to larger children's sizes, including 116, 122 and 128.

A short-sleeved T-shirt for boys is better suited to warmer days, wearing indoors or as a base layer. The range includes Chicco styles in sizes such as 56, 62, 74, 80 and 92. For a baby, a short sleeve can also be easier to combine with a cardigan.

A white vest top for a boy has no sleeves and can work well as a lightweight layer. The Chicco vest top in size 122 is described as being for boys, comes in white and is made from 100% cotton. Just be sure to check whether you're looking for a vest top or a short-sleeved style; these terms are sometimes used interchangeably in search results.

Our recommendations by use profile

Suitable for: Budget-conscious beginners
Chicco 09005877000000 BOYS WHITE 074

Chicco 09005877000000 BOYS WHITE 074

Why this fits the profile: A straightforward style for anyone looking for a white children's T-shirt with short sleeves for everyday use with a young child.

How this product avoids the pitfall

The product information clearly states size 74, the age recommendation of 12 months and 100% cotton. Check the label for care instructions.

Key benefit & highlights

Short sleeves, white colour, size 74 and a stated composition of 100% cotton.

Suitable for: Shoppers seeking top quality
Nike Sportswear Club T-Shirt White Size L

Nike Sportswear Club T-Shirt White Size L

Why this fits the profile: An option for adults or older teenagers looking for a white casual Nike T-shirt in size L.

How this product avoids the pitfall

The chest measurement for size L is listed as 104–112 cm. This means you don't have to rely solely on a general letter size.

Key benefit & highlights

100% cotton, classic fit, embroidered Futura logo and machine washable according to the stated care instructions.

Suitable for: Specific use & heavy users
CHICCO-LONG SLEEVE T-SHIRT-T-SHIRT LONG SLEEVE-116-WHITE

CHICCO-LONG SLEEVE T-SHIRT-T-SHIRT LONG SLEEVE-116-WHITE

Why this fits the profile: A long-sleeved top for children that works as an extra layer or a standalone shirt in changing temperatures.

How this product avoids the pitfall

Size 116 is linked to a guide with body measurements, so you don't have to select based on age alone.

Key benefit & highlights

Long sleeves, white colour and size information for children from baby sizes up to teen sizes.

Suitable for: Lots of freedom of movement
Chicco 09000060000000 BOYS WHITE 122

Chicco 09000060000000 BOYS WHITE 122

Why this fits the profile: A white vest top for a boy who wants a sleeveless style for warm days or as a lightweight layer.

How this product avoids the pitfall

The product explicitly states that it is a vest top, with size 122 and 100% cotton. This makes the sleeveless cut clear before purchase.

Key benefit & highlights

Vest top style, white colour, size 122 and a stated composition of 100% cotton.

Looking for more options?

We've put together a full, up-to-date list of products that fully meet these strict selection criteria and comply with current European safety regulations.

Frequently asked questions about a white T-shirt for children

What size white T-shirt fits a six or seven-year-old child?

First, look at the child's height. In the Chicco guides, size 116 is linked to around 6 years old and size 122 to around 7 years old. Also check the chest, waist and hip measurements. Age is only a guideline.

Is 100% cotton suitable for everyday wear?

The Chicco and Nike styles mentioned list 100% cotton. This can be a practical choice for an everyday shirt, but how it feels to wear also depends on the thickness, fit and finish. Always follow the care label to best preserve the shape and colour.

Should I choose a long-sleeved top, short sleeves or a vest top?

Choose a long-sleeved T-shirt for children if you want extra coverage or a layer under a coat. A short-sleeved style suits warmer weather and everyday indoor wear. A vest top is sleeveless and therefore best when you want less fabric around the arms. Always check the product type and size guide before ordering.