In brief: A good underwear test for 2026 primarily compares material, fit and functionality. The best models offer breathable fibres such as cotton or merino wool, seamless or flat construction for excellent comfort and an ideal fit without chafing or restricting movement. Sustainable materials and functional designs are becoming increasingly popular, especially for boxer shorts, delivering reliable performance both in everyday life and during sport.
Choosing the right underwear affects your day more than you might think. It is the foundation of every outfit and influences comfort, confidence and wellbeing. Our 2026 underwear test and comparison examines the most important models. We analyse materials, fit and everyday practicality to help you make an informed choice.
Contents
What makes good underwear stand out in a test?
A meaningful underwear test evaluates more than just appearance. The most important criteria are material quality, construction and functionality. Breathability comes first to prevent a damp environment. Seams should be flat or seamless to help prevent chafing.
The waistband must stay securely in place without digging in or rolling. Pay attention to the stretch of the material. It should allow natural movement without losing its shape. The length of the leg openings is another factor that affects comfort under different trousers.
Tip: Try new underwear at home first. This lets you find out whether the material feels scratchy or the seams press into your skin before wearing it all day.
The role of fit in detail
The perfect fit is individual. It depends on your body shape and personal preferences. A close fit offers more support but can dig in if the size is wrong. A looser cut provides greater freedom of movement but may bunch up.
Compare the cuts offered by different brands. Some are designed for athletic builds, while others suit slimmer or fuller figures. Manufacturers' size charts often differ. Take your measurements again regularly.
Materials compared directly
Material is the key factor determining comfort, temperature regulation and durability. There is a wide choice, and every material has specific advantages and disadvantages.
Cotton is the classic choice. It is soft, breathable and gentle on the skin. Pure cotton absorbs moisture well but dries more slowly. It is an excellent choice for everyday wear. In our underwear category, you will find many cotton models.
Merino wool is a natural performance fibre. It regulates temperature extremely well, wicks moisture away from the skin and is naturally odour-resistant. It is ideal for activities and travel.
Synthetic blends made from polyester, polyamide and elastane are lightweight, quick-drying and retain their shape. They often provide the best support during sports. The quality of synthetic fibres varies considerably.
Warning: Cheap synthetic fibres can develop an unpleasant smell in hot conditions or when you sweat because they do not absorb moisture well. Look for odour-neutralising technologies.
Sustainable alternatives are gaining ground
More and more manufacturers are turning to sustainable materials. These include organic cotton, Tencel (Lyocell) made from wood and recycled polymers. These materials conserve resources and are often just as high-performing as conventional alternatives.
Choosing these fabrics consciously is worthwhile. They help improve the environmental footprint of your clothing. Browse our clothing category for sustainable options.
How to find the perfect fit
Finding the right size is crucial. Underwear that is too tight cuts in and restricts circulation. Models that are too loose slip, chafe and create unattractive wrinkles.
Take a tape measure. Measure your waist circumference at the height of the waistband. Measure your hip circumference at the widest point. Compare these measurements with the manufacturer's chart, not with your usual clothing size.
Remember shrinkage. Natural materials such as cotton can shrink slightly during the first wash. With these materials, choosing one size larger may be sensible. Synthetic blends usually retain their shape.
Different cuts for every body type
Boxer shorts are available in different cuts. The classic cut offers plenty of freedom for your legs. The closer-fitting trunks cut is shorter and provides more support. The choice is a matter of personal preference and depends on the trousers worn over them.
For tight-fitting trousers, seamless or flat-seam trunks are a better choice because they do not leave distracting lines. Under loose trousers or for leisure, classic boxer shorts are often more comfortable.
Product comparison: boxer shorts in focus
Boxer shorts are the most commonly worn underwear for men. Our comparison focuses on practical 2-pack offers that emphasise material and fit. The following table gives you a quick overview of selected models.
The highest-rated underwear products from our range compared directly:
| Model | Customer rating | Availability |
|---|---|---|
| 2-pack boxer shorts, black, Size 2XL | – | Currently unavailable |
| 2-pack boxer shorts, black, Size 3XL | – | Currently unavailable |
| 2-pack boxer shorts, black, Size 4XL | – | Currently unavailable |
| 2-pack boxer shorts, black, Size L | – | Currently unavailable |
| 2-pack boxer shorts, black, Size M | – | Currently unavailable |
Looking at the details, the different sizes offer specific benefits. The
in size M offers a versatile fit for slimmer to average builds. The material is durable and retains its shape even after frequent washing.
For larger builds, the
in size XL is a good choice. The cut is designed to provide plenty of room without feeling too loose. The waistband stays securely in place and does not roll down.
If you are looking for extra-large sizes, take a look at the
in 4XL. Comfort is the priority here, without compromising on support. Models like these are an important part of our entire range for household and clothing.
Note: The availability of special sizes such as 2XL, 3XL or 4XL may vary. Check our range updates regularly to find the right size for you.
Striped models as a stylish alternative
In addition to plain underwear, striped designs are also available, such as the black-on-black striped model. They add subtle visual interest while remaining discreet under clothing. They are a good choice if you want a little more variety in your underwear drawer.
Proper care for maximum durability
How you care for your underwear can significantly extend its lifespan. Wash new items before wearing them for the first time. This removes any production residue and softens the material.
Wash underwear at 30°C or 40°C. Use a mild detergent. Avoid fabric softener, as it can reduce the absorbency of natural fibres and damage the elasticity of waistbands.
Fasten all closures, such as buttons or hook-and-loop fasteners, before putting the laundry in the machine. This protects the fabrics from damage. Turn the garments inside out to help preserve their colours.
Drying and storage
The tumble dryer is the biggest enemy of elasticity. It is better to air-dry your underwear. Avoid direct sunlight for dark colours to prevent fading.
Store your underwear in a dry, well-ventilated place. Overfilled drawers can affect the shape of waistbands. Fold or roll your boxer shorts to save space.
What the 2026 trends have in store
The underwear industry is constantly evolving. Clear trends are emerging for 2026. Sustainability remains a key issue. Even more products made from recycled materials and manufactured under fair working conditions are expected.
The focus on health is continuing. Underwear with antibacterial treatments or special fibres for very sensitive skin is becoming more popular. Supportive features are also gaining importance, not only in sportswear.
The line between underwear and sports base layers is becoming blurred. Versatile garments that can be worn both every day and during training are in demand. They combine comfort with performance.
Test conclusion
The best underwear for you is the kind you forget you are wearing. It should fit perfectly, be made from comfortable material and suit your lifestyle. Our test shows that it is worth investing in quality and paying attention to details such as workmanship and care instructions.
Use our comparison as a guide. Consider your personal priorities – whether everyday comfort, sports performance or sustainable production. With the right choice, you can start each day feeling better.
Frequently Asked Questions
- What is the best material for underwear?
- Cotton is the classic choice because it is breathable and gentle on the skin. For sports activities, performance fabrics such as merino wool or special synthetic blends are better because they wick moisture away efficiently. Silk offers a luxurious feel but requires more care.
- How do I find the right underwear size?
- Measure your waist and hip circumference and compare these measurements with the manufacturer's size chart. Underwear should fit snugly without digging in or chafing. Make sure the waistband does not roll over. If you are between two sizes, choosing the larger size often provides greater comfort.
- How often should you change your underwear?
- You should change your underwear every day. For hygiene reasons, wearing fresh underwear daily is recommended. After exercising or heavy sweating, changing immediately is advisable to prevent skin irritation.
- What are the benefits of seamless underwear?
- Seamless underwear minimises pressure points and chafing, especially under tight clothing. It offers an almost invisible fit and significantly increases comfort. This technology is ideal for sports activities or everyday office wear under suit trousers.
- Can underwear go in the tumble dryer?
- Always check the care label. Cotton can usually go in the tumble dryer, although this may cause it to shrink. Fabrics containing elastane or silk are sensitive to heat. Air-drying is the gentlest method for preserving the shape and elasticity of your underwear for longer.