Joybuy Insights

Buying underwear: how to choose a comfortable, well-fitting multipack

Buying underwear may seem straightforward, but you often only notice a poor choice after a few washes. A waistband that digs in, fabric that quickly loses its shape or a fit that rides up can turn a seemingly good-value purchase into an expensive one. Marketing terms such as “antibacterial”, “moisture-wicking” and “organic” only mean something when you check the material and product information.

In this guide, we compare practical options for women’s underwear, men’s underwear, sports, travel and everyday wear. The selection is based on verifiable details such as material, number of items, fit, size advice and care instructions.

Three common pitfalls when buying underwear

1. Looking only at the price per multipack

A 3-pack of underwear or 5-pack of underwear may look good value, but check the composition first. A multipack made from 95% cotton and 5% elastane has different properties from a fully synthetic model. Also check whether all the items are the same colour, cut and size.

2. Confusing size labels with body measurements

An M from one brand may fit differently from an M from another. Some models link the size to waist measurement, while others use hip measurement or an international size. So measure yourself at home and compare the result with the size chart on the product page.

3. Treating functional claims as a guarantee

According to the product information provided by various brands, certain finishes may help to wick away moisture, or a gusset with an antibacterial treatment may form part of the design. This is not a medical claim and is not a guarantee of a particular result. Always check the exact composition, care instructions and source of the claim.

What should you look for in cotton and other underwear?

Material: cotton, modal or a stretch blend

  • Cotton underwear feels familiar to many people and is suitable for everyday wear. A small amount of elastane can provide better support for freedom of movement and shape retention.
  • Organic cotton underwear may be worth considering if you value certified organic fibres. Check which certification is actually stated. “Organic” without further details provides little information.
  • Modal underwear is known for its smooth, soft feel. With a modal blend, it is also important to check the percentages of cotton, elastane or other fibres.
  • Stretch fabric is not automatically more comfortable. The waistband, leg openings and seams all influence how comfortable a model feels.

Fit and style

For men, men’s boxer shorts, trunks and briefs are different options. A slim-fit boxer sits closer around the leg, while a classic boxer offers more room. Trunks generally have a shorter leg. For women, the options range from women’s briefs to hipsters and styles with extra coverage.

Pay attention to these points:

  1. Rise: low rise sits lower on the hips; medium or regular rise provides more coverage.
  2. Leg opening: flat or seamless edges may be less visible under close-fitting clothing.
  3. Gusset: check the length, fabric construction and any additional layers.
  4. Elastic: a wide, soft band may distribute pressure better than a narrow one.
  5. Size range: do not look only at the available size; also check the body measurements in centimetres.

Care and longevity

Wash underwear according to the label. Many cotton-elastane styles should be washed at 30 or 40 °C and should not be tumble-dried. High heat can damage elastane and waistbands more quickly. Sort dark and light colours, do not use bleach when it is not recommended, and avoid unnecessarily hot washes.

Recommended choices by user profile

Suitable for: Budget-conscious beginners
Urban Classics Solid Organic Cotton Boxer Shorts 5-Pack

Urban Classics Organic Boxer Shorts 5-Pack

Why it suits this profile: Five identical black boxer shorts provide a practical everyday basis, without having to combine different styles.

How this product avoids the pitfall

The product information states a fixed composition of 95% organic cotton and 5% elastane, along with care instructions to help preserve stretch and shape.

Key benefit & highlights

5-pack; 95% organic cotton; 5% elastane; available in larger sizes, depending on the variant.

Suitable for: Shoppers looking for premium quality
Calvin Klein 3-Pack Slim Boxers Icon Cotton Stretch

Calvin Klein 3-Pack Slim Boxers Icon Cotton Stretch

Why it suits this profile: Brand-conscious shoppers looking for a close-fitting style get three neutral colours for work, leisure and everyday wear.

How this product avoids the pitfall

The specifications mention the slim fit, Infinity Bond waistband and rolled hem. This allows you to assess the construction rather than choosing based on the brand name alone.

Key benefit & highlights

Cotton-elastane blend; 3-pack in black, white and grey; machine washable at 30 °C according to the product information.

Suitable for: Specific needs & intensive use
YIJINCHAN Men's Disposable Pure Cotton Underwear 3-Pack

YIJINCHAN men’s disposable underwear 3-pack

Why it suits this profile: Handy when you do not want to carry laundry on a flight, camping trip, hospital visit or in an emergency.

How this product avoids the pitfall

The items are individually packaged and intended for single use. This makes it clear in advance that they are not an alternative to washable everyday underwear.

Key benefit & highlights

100% cotton according to the product description; 3 individually packaged items; size M for a hip measurement of 89–99 cm.

Suitable for: Soft everyday women’s underwear
Utree women’s modal underwear 3-pack

Utree women’s modal underwear 3-pack

Why it suits this profile: The high stretch, full coverage and longer gusset construction are designed for everyday comfort and light activity.

How this product avoids the pitfall

According to the product information provided by the brand, the gusset has a “10A antibacterial cotton” finish. Treat this as a product specification, not a medical effect or guarantee.

Key benefit & highlights

Modal blend; 3-pack; approximately 200% stretch according to the product description; a choice of several colour combinations and sizes.

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 buying underwear

How often should you replace your underwear?

It depends on how it is used, how often it is washed and the material. Replace an item when the fabric becomes thin, the elastic no longer springs back, seams start to come undone or the fit changes. A multipack makes it easier to rotate your underwear, so each item is washed less often in succession.

Is cotton underwear suitable for everyday wear?

For many people, cotton is a practical choice because of its familiar feel. However, check the full composition and fit. A cotton-elastane blend may offer more stretch than 100% cotton. Follow the care label and allow the underwear to dry thoroughly before wearing it again.

Is disposable underwear useful for travelling?

Disposable underwear can be practical when washing is difficult, for example while camping, on long journeys or during a stay with limited sanitary facilities. Bear in mind the additional waste, and do not use it as a cheaper replacement for washable underwear. Also check the size, packaging and material information before ordering.