Joybuy Insights

Choosing a white long-sleeve shirt: how to find the right white shirt with long sleeves

A white long-sleeve shirt may seem like a straightforward purchase, but small differences in fit, fabric and care determine how often you will wear it. A lightweight shirt can be comfortable as a layer under a jumper, while a more substantial model is better suited to everyday wear or a casual outfit.

Pay particular attention to these three common pitfalls:

  • An unclear fit: terms such as “relaxed” and “oversized” do not tell you exactly how roomy the shirt is. Always check the size guide and the difference between M, L and XL.
  • A material claim without a composition: “soft” or “breathable” means little without percentages. A cotton shirt feels different from a cotton blend with polyester.
  • Incorrect care: white clothing can discolour or lose its shape if you wash it at too high a temperature, use the wrong detergent or leave it to dry in direct sunlight for too long.

Which specifications are important?

1. Material and when to wear it

A 100% cotton shirt can be suitable for everyday wear, layering and casual outfits. Product descriptions often associate cotton with a soft or breathable feel. According to the product specification, the Levi’s Nola model is made from 100% cotton.

A cotton blend can be more practical for sporty activities. According to the product information, the Under Armour Sportstyle long-sleeve shirts consist of 60% cotton and 40% polyester. The brand’s product description states that the fabric is moisture-wicking and quick-drying. Treat this as a product specification for its intended use, not as a guarantee that every wearer will have the same experience.

2. Fit and size

The right size depends on more than your usual clothing size. Look at:

  • Regular fit: usually a straight, less roomy cut.
  • Oversized or relaxed fit: more room around the body and sleeves.
  • Chest measurement: a more reliable starting point than simply choosing M, L or XL.
  • Sleeve length: important if you wear the shirt under a jacket or jumper.

The Levi’s Nola collection is described as oversized and relaxed. According to the product specification, the Under Armour long-sleeve shirt has a regular fit. A chest measurement of 104–112 cm is given for size L; for XL, it is 112–122 cm. Always check the size guide on the product page before ordering.

3. Care and colour retention

White clothing stays looking its best for longer when you follow the care label. Pay attention to temperature, bleach and drying. According to the instructions, the Levi’s shirt can be washed at a maximum of 40 °C, while cold washing is specified for the Under Armour models. Under Armour also advises against using fabric softener or dryer sheets.

Wash a white shirt with similar light colours and avoid prolonged exposure to direct sunlight. This helps reduce the risk of discolouration. A white long-sleeve shirt does not have to be complicated, but the care instructions are a practical part of your purchasing decision.

Our recommendations for different uses

Suitable for: Budget-conscious beginners
LEVI'S Women's Shirt Long Sleeve Bright White Nola Collection M

LEVI'S Women's Shirt Long Sleeve Bright White Nola Collection M

Why it suits this profile: This white long-sleeve shirt in size M is ideal for anyone looking for a simple cotton shirt for casual outfits, layering and everyday wear.

How this product avoids the pitfall

The fabric composition is clearly stated as 100% cotton, and the relaxed, oversized fit is explicitly included in the product information.

Key benefit & advantages

100% cotton; white colour; oversized and relaxed design; suitable for size M.

Suitable for: Buyers seeking top quality
LEVI'S Women's Shirt Long Sleeve Bright White Nola Collection L

LEVI'S Women's Shirt Long Sleeve Bright White Nola Collection L

Why it suits this profile: Size L and the roomy Nola fit are suitable for anyone wanting to wear a loose-fitting women’s long-sleeve shirt on its own or over another layer.

How this product avoids the pitfall

The product information specifies both the 100% cotton composition and the oversized cut, so you do not have to rely as heavily on general marketing terms.

Key benefit & advantages

100% cotton; bright white colour; relaxed look; size L; made in Italy according to the product information.

Suitable for: Specific uses & intensive users
Under Armour Men's T-Shirt Long Sleeve White Sportstyle Collection L

Under Armour Men's T-Shirt Long Sleeve White Sportstyle Collection L

Why it suits this profile: This men’s long-sleeve shirt in size L is designed for sporty activities, training, layering and everyday wear.

How this product avoids the pitfall

The regular fit and sizing are clearly specified. According to the product description, Under Armour describes the fabric as lightweight, breathable, moisture-wicking and quick-drying.

Key benefit & advantages

60% cotton and 40% polyester; regular fit; ribbed collar; size L for a chest measurement of 104–112 cm.

Suitable for: A roomier sporty fit
Under Armour Men's T-Shirt Long Sleeve White Sportstyle Collection XL

Under Armour Men's T-Shirt Long Sleeve White Sportstyle Collection XL

Why it suits this profile: Size XL is designed for a chest measurement of 112–122 cm and may suit anyone who needs more room when moving or layering.

How this product avoids the pitfall

The size selection is linked to a specific chest measurement. The care instructions recommend cold washing and drying at a low temperature.

Key benefit & advantages

Cotton-polyester blend; regular fit; lightweight construction; size XL for a chest measurement of 112–122 cm.

When should you choose each long-sleeve shirt?

A white Levi’s shirt made from 100% cotton is particularly suited to a calm, casual style and outfits where the shirt is visible beneath a cardigan, overshirt or jacket. The oversized fit creates a roomier look than a standard regular-fit shirt.

An Under Armour long-sleeve shirt makes more sense when you want to use one shirt for light training, warm-ups, cycling or a sporty everyday outfit. The cotton blend and the moisture-wicking properties described by the brand are suited to this type of use. For intensive activities, it is still sensible to consider freedom of movement, seams and how the sleeves fit around your arms.

If you are looking for a breathable shirt, do not focus solely on the word “breathable”. Check the fibre composition, the fabric weight and whether the model is designed for sport or casual wear. A lightweight sports shirt and a cotton shirt can both feel airy, but they respond differently to perspiration and washing.

Looking for more options?

We have put together a complete, up-to-date list of products that fully meet these strict selection criteria and the applicable European safety regulations.

Frequently asked questions about a white long-sleeve shirt

Which size white long-sleeve shirt is right for me?

Use your chest measurement and compare it with the size guide for the specific model. Size L varies by brand and fit. For the Under Armour model, the product information states that L corresponds to a chest measurement of 104–112 cm, while XL corresponds to 112–122 cm. With an oversized shirt, chest measurement is not the only consideration: also look at shoulder width and sleeve length.

How do you wash a white long-sleeve shirt?

Always follow the sewn-in care label. According to the product information, the Levi’s model can be washed at a maximum of 40 °C. For Under Armour, cold washing is recommended, inside out and with similar colours. Do not use chlorine bleach unless the care label permits it, and do not leave white textiles in bright sunlight for extended periods.

Is a long-sleeve shirt suitable for exercise?

That depends on the material and fit. According to the product description, a cotton blend such as the one used in the Under Armour Sportstyle collection is intended for workouts, training, layering and everyday wear. For strenuous activity, a long-sleeve sports shirt with a lightweight construction may be more practical than a thick 100% cotton shirt. Also check that the sleeves and shoulders provide enough freedom of movement.