Joybuy Insights

Choosing men’s underwear: cuts, materials and multipacks compared

Men’s underwear is often bought based on brand, colour or pack size. But for everyday wear, sport and warm weather, other factors matter more. A prominent branded waistband can’t make up for the wrong cut or an unsuitable fabric. If you’re looking for comfortable men’s underwear that lasts, it’s worth checking a few common marketing claims and product details before you buy.

Common mistakes when buying men’s underwear

1. “Breathable” without clear information about the fabric

The term breathable men’s underwear doesn’t describe a single, consistently defined product feature. What matters is the specific fabric composition. Cotton with elastane can feel soft and allow you to move freely. Bamboo viscose is often promoted for its lightweight feel and moisture management. But that alone doesn’t tell you how durable or easy to care for it is.

Look for a full fabric breakdown, such as 95% cotton and 5% elastane or 92% bamboo viscose and 8% elastane. The more precise the information, the easier it is to compare the product with other men’s boxer shorts, trunks or briefs.

2. A larger pack isn’t automatically better value

When buying men’s underwear in a multipack, the number of pairs isn’t the only thing to consider. A 10-pack can make sense if you already know which cut and size suit you. For your first purchase, a 3- or 4-pack can reduce the risk of ordering a size or style that doesn’t fit. Also check whether every pair has the same cut, colour and fabric composition.

3. The waistband and leg length are easy to overlook

A waistband that’s too tight can feel uncomfortable when you’re sitting down. Boxer shorts with legs that are too short can ride up, while a longer cut may show beneath close-fitting clothes. So don’t judge claims such as “No Ride Up”, “Low Rise” or “Mid Rise” in isolation. Check the size guide, waistband height, inside leg measurement and elastane content too.

The most important things to consider

Cut: boxer shorts, trunks or briefs?

  • Men’s boxer shorts with longer legs suit those who prefer more coverage on their thighs. Flat seams and stretchy fabric can help reduce riding up.
  • Men’s trunks have shorter legs and a close-fitting cut. They’re a practical choice under jeans, trousers or sportswear.
  • Men’s briefs leave your legs free and use less fabric. They can be a good option in warm weather or under close-fitting clothes.
  • For training and movement, a secure waistband, plenty of freedom to move and a cut that doesn’t bunch up are particularly important. You can also browse more styles in our men’s sports briefs range.

Fabric and moisture management

Moisture-wicking underwear can draw sweat away from your body. However, the term can refer to different fabric properties depending on the manufacturer. Check the fibre composition and care instructions.

Bamboo viscose isn’t a natural fibre in its original form; it’s a regenerated cellulose fibre. It can feel soft and lightweight. Products made with bamboo viscose and elastane are often marketed for warm days or sports. Cotton-elastane blends, meanwhile, are a popular everyday choice, offering a good balance of comfort against the skin, shape retention and stretch.

For certified products, check that the specific certification is named. For example, the product description for the CR7 Bamboo Trunk 3-pack lists OEKO-TEX STANDARD 100 and FSC certification. Certifications always apply to the specific item, so check the product details.

Size and care

Don’t rely on S, M or L alone. Sizing can vary between brands. Some Calvin Klein styles, for example, list waist measurements in inches, while other products use EU sizes and centimetres. Measure your waist and compare it with the relevant brand’s size guide.

Care also affects how long your underwear lasts:

  • Follow the washing temperature and drying instructions on the care label
  • Don’t expose elastane to unnecessarily high temperatures
  • Wash dark colours with similar shades
  • Avoid harsh bleach if the manufacturer advises against it
  • Follow the recommended spin and drying method for bamboo viscose and blended fabrics

Our picks for different needs

Best for: Budget-conscious first-time buyers
BAMBOO COOL Men's Underwear Breathable Boxer Briefs

BAMBOO COOL Men's Underwear Breathable Boxer Briefs, 7 Pack

Why it suits this profile: This 7-pack is designed for regular everyday wear and combines 92% bamboo viscose with 8% elastane. The product description lists an elasticated waistband, four-way stretch and a design intended to prevent riding up.

How it avoids the pitfall

The fabric composition is clearly specified. This makes it easier to compare the style with vague claims about “cooling” or “breathable” fabrics.

Key benefit and strengths

7-pack, bamboo viscose-elastane blend and four-way stretch according to the product details.

Best for: Quality-conscious buyers
Calvin Klein 3-Pack Low Rise Trunks Icon Cotton Stretch Black Men

Calvin Klein 3-Pack Low Rise Trunks Icon Cotton Stretch Black Men

Why it suits this profile: According to the product details, these trunks are made from 95% cotton and 5% elastane. The low-rise cut and seamless Infinity Bond waistband are designed to provide a close-fitting feel.

How it avoids the pitfall

The fabric, care instructions and size references are all provided. The waistband is described as stitch-free, but you should still judge it by how well it fits you.

Key benefit and strengths

3-pack, cotton-elastane fabric and low-rise trunk cut.

Best for: Specific activities and frequent wear
BAMBOO COOL Mens Trunks Underwear Performance

BAMBOO COOL Mens Trunks Underwear Performance, 4 Pack

Why it suits this profile: According to the product description, these trunks contain 85% bamboo viscose and 15% elastane. A mesh panel, side opening and tag-free design make them a good option for buyers who value ventilation and freedom of movement during sport or on warm days.

How it avoids the pitfall

Ventilation isn’t just a vague marketing claim: it’s explained through the mesh panels and fabric details. If you wear very close-fitting sportswear, check the leg length first.

Key benefit and strengths

Mesh panel, 85% bamboo viscose and 15% elastane according to the product details.

More options by pack size and brand

If you’re looking to stock up, the Claudio 10-Pack Boxer Shorts are worth considering. They’re made from 65% bamboo viscose, 30% cotton and 5% elastane. If you prefer a smaller multipack from a well-known brand, Calvin Klein and Tommy Hilfiger offer a range of 3-packs made with cotton-elastane blends. Styles vary in waistband height, colour and sizing system.

Check the product page to make sure you’ve selected the size you want. The same style name may appear across several listings with different size options. If you’re unsure, waist measurement, EU size and returns policy matter more than the brand name alone.

Looking for more options?

We’ve put together a complete, regularly updated list of products that meet these strict selection criteria and fully comply with the safety regulations in force in the EU.

FAQs about men’s underwear

How many pairs of boxer shorts should you own?

It depends on how often you do your washing and your daily routine. If you change your underwear every day, a multipack of seven or more pairs can be handy. If you do laundry frequently or wear different cuts, smaller 3- or 4-packs give you more flexibility.

How long does men’s underwear last?

There’s no reliable way to give a fixed lifespan. Washing temperature, tumble drying, frequency of wear, fabric and fit all affect how long it lasts. Loss of elasticity, stretched seams or thinning fabric are good reasons to replace it.

What underwear is best for warm weather?

Lightweight cotton-elastane blends and products made with bamboo viscose are often marketed for warm days. For sport, additional mesh panels and moisture-wicking fabric may be useful. The fabric details, cut, care instructions and your personal fit remain the key considerations.