Summer, sun, beach – and the search for the perfect swimsuit begins. In 2025, the selection will play a bigger role than ever before, as trends, comfort, and sustainability take center stage. A great look boosts confidence and well-being, whether by the pool, the sea, or a lake.
This comprehensive guide provides inspiration for men, women, and children. It also includes suitable swim trunks for boys, for example, in the MAIN Mini collection . Look forward to current trends, fit tips, material information, styling ideas, care tips, and sustainable alternatives.
Now is the ideal time to check your own swim trunks and discover new favorite pieces for the summer.
Swimsuit trends 2025: What's in?
Summer 2025 is all about fresh colors, innovative cuts, and sustainable materials. Swim trunks are evolving to meet every style and need. Whether for men, women, or children, the latest trends offer variety and comfort for all generations.
Colors, patterns & prints
Swim trunks in 2025 are colorful and bold. Pastel shades like mint, lilac, and peach dominate, while neon highlights add striking accents. Classic navy tones remain a staple and are complemented by tropical prints, geometric patterns, and eye-catching retro designs.
Statement logos compete with minimalist looks. According to the Quiksilver trend report, over 60% of swim trunks already featured prints in 2024. From a color psychology perspective, light tones appear summery and invigorating, while dark colors convey elegance. Numerous designer collections offer inspiration and further insights into the current swimwear trends for 2025 .
Cuts & lengths for men, women and children
Men's swimwear ranges from ultra-short swim shorts to knee-length board shorts. Women can choose between sporty bikini bottoms, high-waisted styles, and classic swimsuits. For children, the focus is on comfortable, secure fits that guarantee maximum freedom of movement.
Cool designs for boys, such as those found in the MAIN Mini collection, are especially popular. The right length depends on body type: shorter styles accentuate slim legs, while longer versions offer more comfort. Boardshorts remain a top seller for men.
Innovative Materials & Sustainability
Sustainability is a key theme for swimwear in 2025. More and more brands are relying on recycled materials, such as recycled polyester or Econyl. Quick-drying fabrics, UV protection, and high resistance to chlorine and salt water ensure durability and comfort.
Certifications like OEKO-TEX or GRS assure consumers of environmentally friendly production. Quiksilver, for example, increasingly uses recycled polyester, which has a lasting impact on the market. These innovations make the swim trunks not only environmentally friendly but also functional.
Comfort & functionality in focus
Comfort is paramount for swim trunks in 2025. Elastic waistbands, practical pockets, and breathable mesh lining ensure a comfortable feel. For athletic activities, models with compression panels offer additional support.
Skin-friendly materials prevent chafing, while combination products allow for a seamless transition from swim trunks to sports shorts. This ensures the swim trunks remain versatile, whether at the beach, in the water, or during leisure activities.
Cross-gender trends
Gender-neutral designs will shape the swimwear market in 2025. Unisex models and family looks, where parents and children dress in matching outfits, are particularly in demand. Current designer collections are embracing this trend and offering suitable styles for all age groups.
Social media promotes the spread of these trends and inspires new combinations. Modern, sustainable swim trunks are also available for boys, for example in the MAIN Mini children's swimwear collection . Swim trunks thus become a statement of individuality and togetherness.
The perfect fit: How to find your ideal swim trunks
The search for the perfect swimsuit begins with an honest analysis of your own body shape. Men, women, and children have different requirements when it comes to cut and comfort. A helpful swimwear fit guide can help you find the best swimsuit for every figure. Especially when buying online, it's crucial to use size charts correctly and pay attention to the manufacturer's specifications. There are specific recommendations for curvy, slim, or athletic builds, so everyone can choose the right swimsuit. Individual fits are also important for boys and girls to ensure a comfortable fit.
Fit guide for men, women and children
Choosing the right swimsuit depends heavily on your body type. Men usually benefit from mid-length or longer cuts, while women can choose between high-waisted styles, sporty bikini bottoms, or classic swimsuits. For children, freedom of movement is paramount, which is why flexible cuts and adjustable waistbands are ideal.
When shopping online, carefully check the manufacturer's size chart. A tip: If in doubt, order one size larger to ensure the swim trunks aren't too tight. There are separate sizing recommendations for boys and girls, taking into account their different body proportions.
Cutting methods compared: advantages and disadvantages
Different swim styles each offer their own advantages. Classic briefs provide maximum freedom of movement but are more suitable for swimmers. Shorts and boardshorts offer more coverage and are very popular with men.
Jammer-style swimwear is ideal for athletic activities because it provides good support. Women can choose between bikini bottoms, swimsuits, and tankinis. For children, shorts and close-fitting styles are particularly practical because they don't slip down. The right swimwear provides optimal support for any activity and ensures comfort.
Comfort tips: What to look out for when trying on clothes?
When trying on swim trunks, carefully inspect the seams, waistband, and lining. Skin-friendly fabrics and a comfortable fit are crucial to prevent chafing. The material should have sufficient elasticity so that the swim trunks move with you.
A practical test is also important: Does the swimsuit still fit comfortably when wet? Breathable fabrics and high-quality workmanship contribute to ensuring that the swimsuit lasts a long time. Small details such as pockets or an adjustable drawstring further enhance comfort.
Special features for children: Safety & comfort
Children need swim trunks that combine safety and comfort. UPF 50+ sun protection protects sensitive skin, while adjustable cuffs ensure a perfect fit. The MAIN Mini collection is particularly worth considering for boys, as it offers sustainable and safe designs.
Freedom of movement is essential so that children can play and swim without worry. High-quality materials and robust fasteners ensure that the swim trunks stay in place even during vigorous activity. There are also special fits available for girls that cater to their specific needs.
Avoid mistakes when buying
Common mistakes when buying swim trunks include choosing models that are too tight or too loose. Swim trunks that are too small will dig in and be uncomfortable, while those that are too large will easily slip down. Fit problems can be avoided by paying attention to the cut, elasticity, and material right from the start.
Anyone ordering online should check the return and exchange policies. This way, the swim trunks can be easily exchanged if needed. With a little preparation and the right tips, everyone can find the perfect swim trunks for themselves and their family.
Materials & Quality: What matters when choosing swim trunks
Choosing the right material significantly impacts the comfort, durability, and style of your swim trunks. Modern swimwear relies on innovative fabrics, sustainable alternatives, and high-quality workmanship to ensure you can enjoy your swim trunks for a long time.
The most important substances at a glance
Today, most swim trunks are made from functional synthetic fibers. Polyester is particularly shape-retaining and colorfast. Polyamide is characterized by high tear resistance and quick drying, while elastane provides elasticity. Many brands rely on blended fabrics to combine the advantages and optimize the comfort of the swim trunks.
A mesh lining provides extra support and improves the fit. These material blends are standard in swim trunks for girls, women, and especially boys. Thanks to modern manufacturing processes, your swim trunks will remain comfortable against the skin even after many uses.
Comparison table of main materials:
| material | Advantages | Disadvantages |
|---|---|---|
| polyester | Colorfast, durable | Not very breathable |
| polyamide | Tear-resistant, quick-drying | Can stretch out |
| elastane | Elastic, comfortable | Low durability |
| Mixed fabric | Optimal comfort | More expensive |
Sustainable Alternatives & Innovations
More and more manufacturers are using sustainable materials for swim trunks. Recycled polyester, Econyl®, and similar fabrics are made from old fishing nets or plastic bottles. These innovations conserve resources and ensure environmentally friendly swim trunks without compromising on comfort.
Brands like Quiksilver, Calvin Klein, and MAIN Design use certified fabrics. MAIN Design, in particular, offers sustainable swimwear for women, girls, and boys. Detailed information on sustainable materials and production methods can be found under "Sustainability in Swim Trunks ."
Water-saving production processes and transparent supply chains are key quality indicators today. Those who prioritize sustainability benefit from durable, low-emission products.
Easy to care for & durable: Recognize quality features
You can recognize a high-quality pair of swim trunks by several details. Double seams ensure stability, while robust cuffs and quality zippers extend their lifespan. Look for colorfast fabrics so that your swim trunks don't fade even after exposure to UV radiation, chlorine, or salt water.
Certifications such as OEKO-TEX or GRS provide assurance regarding material selection and production. Durability and safety are particularly important for children's swim trunks, such as those from the MAIN Mini collection for boys.
Checklist for quality characteristics:
- Double, strong seams
- Protection against fading
- Durable cuffs
- Certified materials
Tips for material care
To keep your swim trunks looking like new for a long time, proper care is essential. Rinse them with clean water after every use. Wash them at low temperatures on a gentle cycle and avoid using fabric softener.
Always air dry your swim trunks, never in a dryer. Follow the manufacturer's care instructions to prevent material fatigue. This will ensure your swim trunks – whether for men, women, girls, or boys – retain their shape and vibrant colors.
Styling tips: How to combine your swim trunks for the perfect summer look
The perfect summer look starts with a versatile pair of swim trunks that can be effortlessly combined with other pieces. Whether for men, women, or children, the selection of modern designs offers numerous styling options for the beach, pool, and leisure time. The right combination not only emphasizes your personal style but also ensures comfort and confidence throughout the summer.
Combination options for men, women & children
Swim trunks can be styled differently for every occasion. Men often opt for a classic T-shirt or a light linen shirt to complete their look. Women combine their swim trunks with a loose kimono, a stylish poncho, or a light beach dress.
Children opt for comfortable shirts or UV-protective tops so they can play carefree. Family looks with color-coordinated outfits are especially popular. For boys, there are special designs, like the cool models from the MAIN Mini collection , which combine comfort and style.
With the right tops and accessories, every pair of swim trunks becomes an eye-catcher that matches individual style.
Summer accessories that complete the look
Accessories are the perfect finishing touch for any swimsuit. Classics include stylish sunglasses, casual caps, and lightweight sandals. A large beach towel in trendy colors completes the look and ensures comfort by the water.
Women opt for delicate jewelry, colorful bangles, or summery anklets. A spacious beach bag offers room for all the essentials, while a sun hat provides optimal protection and a touch of elegance.
Waterproof bags are practical for children to safely store their mobile phones and valuables. The right accessories complement any swimsuit and complete the summer outfit.
Swim trunks in everyday life: From the beach to the city
Swim trunks are no longer just for the beach. Modern cuts and high-quality materials make them suitable for everyday wear. Paired with a simple T-shirt or polo shirt, swim trunks become the perfect companion for a trip to the beach bar or a stroll along the promenade.
For a sporty look, swim trunks can be combined with a tank top and sneakers. Swim trunks are especially popular as a shorts alternative at festivals or garden parties. Some models feature subtle patterns or classic colors, making them easy to integrate into urban street style looks.
Children also benefit from this versatility, as comfortable swim trunks are ideal for the playground and ice cream parlor.
Looks tailored to your type: Colors, patterns & figure
Choosing the right swimsuit depends on individual preferences and body type. Light colors make tanned skin glow, while dark tones add elegance. Patterns like stripes or tropical prints cleverly conceal minor problem areas or add fashionable accents.
Those seeking inspiration will find plenty of ideas in current designer collections. For example, trends, colors, and cuts for 2025 are clearly presented in "Swimwear 2025: The Most Beautiful Trends ."
There are also stylish and practical models for children, especially boys, that combine comfort and trend awareness. This way, everyone can find the perfect swim trunks to suit their personality.
Styling Dos & Don'ts
When styling swim trunks, remember: less is often more. Too many patterns or eye-catching accessories can quickly look overwhelming. The ideal look is a combination of one statement piece and understated accessories.
Different materials should be harmoniously coordinated. When creating family looks, it's advisable to pay attention to a common color scheme without choosing identical outfits for everyone.
Another no-go: swim trunks that are too tight or too loose, as this compromises comfort. Fashion influencers and designers offer inspiration, showing how to style swim trunks in a stylish and individual way.
Sustainability & conscious consumption in swimwear
Sustainability is also a key issue when choosing swimwear. More and more consumers are questioning the origin and environmental impact of their swimwear. The production of conventional swimwear often generates microplastics and pollutes the oceans. Growing environmental awareness and the desire for durable products are promoting more conscious consumption. According to industry statistics, the share of sustainable swimwear grew by 30 percent in 2024. This trend shows that choosing sustainable swimwear not only protects the environment but also demonstrates a commitment to a responsible lifestyle.
Sustainable Brands & Materials Overview
More and more brands are using recycled materials and fair production conditions for their swimwear. Quiksilver and Calvin Klein are among the pioneers when it comes to innovative fabrics like recycled polyester or Econyl. Transparent supply chains and certifications such as OEKO-TEX or GRS help consumers make conscious choices. MAIN Design also focuses on sustainable materials and fair working conditions. Especially when it comes to swimwear for women, men, and children, an increasing number of buyers are paying attention to these quality features.
Sustainable swim trunks from MAIN Design: Stylish, safe & environmentally friendly
MAIN Design stands for high-quality and sustainable swimwear for women and children. The boys' swim trunks from the MAIN Mini collection , made from recycled fabrics, are especially popular. All products offer optimal comfort, durability, and UPF 50+ sun protection for children. One percent of online sales goes to Healthy Seas to protect the oceans. The minimalist design and fast delivery within Switzerland complete the offering.
Tips for conscious consumption & long lifespan
Choosing quality swimwear contributes to resource conservation. Instead of buying many cheap models, it's worthwhile to invest in durable products. Care and repairs significantly extend the lifespan of swimwear. Second-hand shops, swap meets, and recycling programs offer sustainable alternatives to buying new. These measures not only keep your favorite swimwear looking good for longer, but also significantly reduce your environmental footprint.
Swim trunk care: How to keep your summer look fresh for longer
Anyone who loves their swim trunks wants them to look like new even after many summers. With proper care, the color stays vibrant and the fabric remains elastic – whether for men, women, or children. Durability is especially important for boys' and girls' swim trunks, ensuring they stay comfortable while playing and swimming.
Washing & Drying: The Most Important Rules
To ensure your swim trunks retain their shape and color for a long time, you should rinse them with clean water after every swim. This removes salt, chlorine, and sand that can damage the fabric.
For best results, wash your swim trunks on a gentle cycle at a maximum of 30 degrees Celsius and avoid fabric softener. Fabric softener damages the fibers and can reduce elasticity. Always air dry your swim trunks and never use a dryer to protect the material.
Washing tips at a glance:
- Rinse after each use.
- Wash in cold or lukewarm water
- Do not use fabric softener.
- Do not tumble dry
Especially with children's swim trunks, a particularly gentle approach is recommended so that the swim trunks can be enjoyed for a long time.
Avoid stains, odors & wear and tear
Chlorine, sunscreen, and salt water can cause stains and odors over time. Rinse your swim trunks thoroughly immediately after swimming to remove any residue. For stubborn stains, pretreating the fabric with a mild shampoo or a special detergent for delicate fabrics can help.
Home remedies for stains:
- Sunscreen stains: Treat with gall soap or mild shampoo
- Oil and grease stains: Gently rub with dish soap.
- To combat odors: A splash of vinegar in the dishwater neutralizes unpleasant smells.
Avoid harsh bleaching agents, as they can fade the swim trunks and damage the material. Boys' swim trunks will also stay looking like new for a long time.
Storing swim trunks correctly
After cleaning, it's important to let your swim trunks dry completely before putting them away in the closet. Moisture can cause mold and unpleasant odors.
Store your swim trunks in a dry, dark place, ideally in a separate laundry bag. Never leave them damp in your sports bag, otherwise you risk mildew and material damage.
Storage tips for every swimsuit:
- Always store completely dry
- Do not store in direct sunlight to prevent fading.
- For longer breaks, e.g. in winter, store in a breathable bag.
Especially for children's swim trunks, such as the boys' swim trunks from MAIN Design , proper storage is crucial for durability.
Repair & Upcycling
Small tears or loose seams don't have to mean the end of your swim trunks. Many damages can be quickly repaired with a needle and thread or a repair kit. This way, you extend the life of your favorite swim trunks and conserve resources.
Upcycling ideas for old swim trunks:
- Cut to size as a bag for beach supplies
- Use fabric scraps as a hairband or keychain
- Children can make creative craft projects out of old swimming trunks.
By repairing and upcycling, you contribute to more conscious consumption and ensure that every pair of swim trunks – whether for men, women or children – survives many adventures.
Want to perfect your summer 2025 look while prioritizing style, comfort, and sustainability? Our guide shows you how current trends, the right fit, and innovative materials come together to make you feel completely comfortable at the beach, the pool, or on a family outing. MAIN Design combines stylish swimwear with responsible consumption and even supports ocean conservation. Get inspired and discover how you can not only look good with select pieces but also do something good.
