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Find your perfect fit: Best swim jammers for men

Professional wild water swimmer

Swimming is a great sport for maintaining good health and fitness, but for outdoor swimmers, the right gear can make all the difference.

Swim jammers are an essential piece of equipment that every swimmer needs to have in their arsenal. Whether you’re a seasoned pro or just starting out, choosing the right swim jammer can be overwhelming.

In this blog, we will provide you with everything you need to know about swim jammers – from their definition and purpose to the essential factors to consider when choosing one for yourself.

We will also review some of the best swim jammers available in the market today. Lastly, we’ll cover maintenance and care tips so that you can get the most out of your purchase.

By the end of this post, you’ll be able to make an informed decision and find your perfect fit!

What are swim jammers?

Swim jammers are a type of swimwear that is commonly worn by competitive swimmers and cold water athletes.

They are designed to provide streamlined coverage and reduce drag in the water, which can help improve a swimmer’s performance by reducing resistance and increasing speed.

Swim jammers are typically made from a tight-fitting, stretchy fabric that conforms to the body’s shape. They extend from the waist down to just above the knees, resembling longer swim trunks or shorts.

The snug fit of swim jammers helps to reduce water resistance around the swimmer’s lower body, allowing for smoother (and quicker!) movement through the water.

What is the purpose of swim jammers?

Swim jammers serve the primary purpose of enhancing a swimmer’s performance in the water by minimising drag and improving hydrodynamics – to put it simply, they help you swim faster in the water!

Swim jammers often incorporate compression technology, which can aid in better blood circulation and muscle support. The compression aspect can contribute to muscle recovery, reduce fatigue, and potentially enhance overall performance.

While providing a tight fit, swim jammers also offer a sufficient range of motion. This balance between compression and flexibility is crucial for allowing swimmers to move without feeling restricted.

Swim jammers are particularly popular among competitive swimmers for races and training. In the realm of competitive swimming, where even minor time differences matter, the streamlined advantage of swim jammers can play a role in achieving improved race times.

Beyond competitive swimming, swim jammers are popular in various water activities, such as water polo, triathlons, diving, and (our favourite!) cold water swimming!

Triathlon competitors using swim jammers
Triathlon competitors

Why are swim jammers important for outdoor swimming?

Swim jammers hold significance in outdoor swimming due to their many benefits. For example, they minimise resistance in open waters, enabling swimmers to navigate currents and waves more efficiently.

Additionally, they offer thermal insulation, which any cold water swimmer will be pleased to hear as open waters are often chilly (to say the least!).

As swim jammers provide coverage to just above the knee, they can help protect cold water swimmers from excessive sun exposure and potential irritants. Their rubber material helps enhance buoyancy, fostering confidence and proper technique.

Lastly, swimming jammers with visibility features, such as bright colours, improve safety in potentially challenging conditions, making them a versatile and essential choice for outdoor aquatic activities.

What to consider when choosing the best swim jammers

When choosing the best swim jammers, it is important to consider factors such as material and durability for long-lasting performance.

Finding the right size and fit is essential for comfort and freedom of movement. Design and colour preferences allow swimmers to express their individual styles.

Material and Durability

Swim jammers made from durable materials like polyester or nylon offer longevity. Flat seams reduce irritation and increase comfort.

Look for eco-friendly options made from recycled plastic bottles to prioritise sustainability.

Size and Fit

Finding the perfect size swim jammers is crucial for a comfortable and secure fit, ensuring optimal performance.

Look for swim jammers with a drawstring waistband for adjustable sizing and a customisable fit. Consider referring to the brand’s size guide for a proper fit.

Design and Color Preferences

Express your personal style and preferences with swim jammers that come in a variety of colours and patterns. Choose designs that match your taste, and look for swim jammers with extra support or frills for added style. Swimming jammers allow you to express yourself while enjoying your outdoor swimming adventures.

Bright colours will also help you stay visible in the water which can be life-saving! Tow floats are an additional piece of equipment that are beneficial for support and visibility.

Look for vibrant patterns and designs that match your unique style and improve your visibility in the open waters.

UV Protection and Chlorine Resistance

When swimming outdoors, it’s essential to prioritise UV protection and chlorine resistance in your swim jammers.

Look for UPF (Ultraviolet Protection Factor) swim jammers to shield your skin from harmful sun rays.

Opt for chlorine-resistant fabrics like polyester or lycra to ensure longevity and durability.

Price Range

Consider your budget when selecting swim jammers; prices can vary based on brand and features.

Research different brands, compare prices, and find jammers within your desired price range. Higher-priced swim jammers often offer better quality and performance.

Brand Reputation

When selecting swim jammers, it’s important to choose reputable brands known for their quality and performance. Consider customer reviews and ratings to gauge reliability and satisfaction.

Popular choices among swimmers include Speedo, TYR, and Nike.

black swim jammers
Black Swim Jammers

Top Swim Jammers for Outdoor Swimming

Cold Water Swim has reviewed the best swim jammers on the market and pulled together a list of our favourites!

You can’t go wrong with any of the options on our list, but keep reading to find more details about each jammer. We have evaluated the price, material, design, and other key features, such as UPF and kind of fastening.

So dive on in and find the best swim jammers for wild swimming!

1. Zoggs Byron Jammer

The Zoggs Byron Jammer stands out for several reasons. It is made with chlorine-resistant polyester, ensuring durability and longevity. Durability is crucial as you want your jammers to last more than one swimming season!

The flat seams provide a comfortable swim experience, while the adjustable drawstring offers a perfect fit. With UPF 50+ sun protection, it is suitable for both casual swimmers and triathletes.

With 82% of Amazon shoppers leaving these swim jammers with 5-star reviews, it is a testament to the quality of the material and design of the Zoggs Byron Jammer.

Zoggs Men's Byron Jammer Swim Trunks
Zoggs Men’s Byron Jammer Swim Trunks


  • £35
  • Triangle front lining for optimal comfort
  • 78% Polyamid and 22% Elastane
  • Machine Washable
  • Drawstring fasten

2. Speedo Eco Endurance+ Slice Jammers

Speedo Eco Endurance+ Slice Jammers, made from recycled nylon and Xtra Life Lycra, offer excellent durability, a close fit, and resistance to chlorine and fading.

Designed for effective training, these jammers utilise Speedo’s cutting-edge ECO Endurance+ fabric, renowned for its rapid drying and utilisation of 50% recycled materials.

They provide great value for money and are a good option for swimmers seeking eco-friendly swimwear.

The Speedo ECO Endurance Plus Splice Jammer has a striking dual-tone side panel and a vibrant geometric pattern, which is ideal for open-water swimming as it will help you stay visible.

Men's ECO Endurance+ Splice Mid Jammer
Men’s ECO Endurance+ Splice Mid Jammer


  • £40
  • Integral support for additional comfort
  • Drawstring waist
  • Chlorine resistant
  • Fast-drying
  • Made from 50% recycled materials

3. Funky Trunks Rainbow Web

With its vibrant and unique design, Funky Trunks Rainbow Web will make you stand out from the crowd! Made from chlorine-resistant polyester fabric, these jammers offer both style and performance. (The Rainbow Web design is our favourite, but Funky Trunks have many other patterns to pick from!)

Thanks to their flat seams that reduce discomfort, Funky Trunks provide extra support and freedom of movement. The wide elastic leg opening and waistband prioritise comfort around your hips and knees to help you keep on kicking!

The Funky Trunks are constructed from the exclusive C-Infinity fabric, a remarkable 100% Italian polyester that’s a game-changer in chlorine-resistant technology. Unlike other elastane swimwear fabrics, my C-Infinity composition boasts unparalleled strength.

Whether you’re a recreational enthusiast or a performance-driven swimmer, these swim jammers are designed to help you excel in open waters.

Rainbow web training jammers
Rainbow web training jammers


  • £31.95
  • Flat seams for reduced discomfort
  • Elastic waistband
  • C-Infinity fabric
  • Funky and fabulous designs!

4. 2XU Propel Jammer

Is the 2XU Propel Jammer worth the investment? Made from hydrophobic neoprene fabric, these jammers provide impressive buoyancy and speed in the water.

With a close and comfortable fit, they are popular among triathletes and competitive swimmers for enhancing performance and endurance. Equally, amateur swimmers can benefit from the internal front lining that keeps your bits and pieces secure and help you avoid the dreaded chafe.

The men’s swimming jammer’s fancy Italian fabric is resistant to moisture, sweat, suncream and UV rays! The material is also puncture resistant which is ideal if you are swimming in lakes or rivers where there is a chance to encounter debris in the water.

So, to answer our original question, yes! We believe the 2XU Propel Jammer is a worthy investment for any cold water swimmer.

2XU Propel Jammer
2XU Propel Jammer


  • £40
  • Premium chlorine-resistant fabric
  • Drawstring waistband
  • Internal front lining
  • Flat seams for reduced chafe (yay!)

5. TYR Durafast Endurance Swim Training Jammer

Durability meets style in the Men’s Durafast Jammer Swimsuit. Crafted from 100% polyester, the TYR Durafast Swim Jammer defies wear and tear, outlasting traditional swimwear by a remarkable 20 times! No worries about sagging fits or sun-chlorine fading here. 

With its dynamic four-way stretch technology and UPF 50+ sun protection, this Durafast jammer ensures free movement and shields you from harmful rays.

The swimming jammer’s above-the-knee design, combined with its compressive fit and customisable drawcord waist, offers the ideal blend of support and motion.

You can select from a variety of chic colour combinations and embrace a timeless, polished appearance that’s yours to own.

TYR Durafast Endurance Swim Training Jammer
TYR Durafast Endurance Swim Training Jammer


  • £43
  • UPF 50+ protection
  • Drawstring fastening
  • Compressive fit
  • Range of colours

6. Nike Hydrastrong Men’s and Boy’s Swimming Jammers

As a well-known and reputable sportswear brand, it’s no real shock that Nike’s HydraStrong Swim Jammer has landed on our list of favourites.

Nike Men’s and Boys HydraStrong Swim Jammer is crafted from durable polyester fabric, providing a close and comfortable fit. With excellent chlorine resistance and colour retention, this swim jammer is designed for long-lasting performance.

Just like a wetsuit, the Nike Swim Jammer will help keep you insulated in cold waters, due to its effective compression. So if you are a cold water swimmer on the market for some new men’s or boys’ swimming jammers, Nike’s option could be the best fit!

Nike Hydrastrong Men’s and Boy's Swimming Jammers
Nike Hydrastrong Men’s and Boy’s Swimming Jammers


  • £53
  • Internal drawcord for adjustability
  • 100% Polyester
  • Easy pull-on

How to look after your swim jammers

Caring for your jammers is essential to ensure their longevity and performance. Here are some tips on how to properly look after swim jammers:

  • Rinse Immediately: After each use, rinse your swim jammers in cool, fresh water to remove chlorine, saltwater, and any other chemicals. This helps prevent damage to the fabric.
  • Avoid using harsh detergents: Bleach or harsh fabric softeners can deteriorate the fabric and elasticity.
  • Avoid hot water: Hot water can break down the fibres of the fabric and affect the elasticity. Stick to cold water when washing or rinsing your swim jammers.
  • Dry flat: After washing, lay your swim jammers flat on a towel to air dry. Avoid wringing or twisting them, as this can damage the fabric and shape.
  • Avoid direct sunlight: Direct sunlight can cause fading and deterioration of the fabric over time. Whenever possible, avoid leaving your swim jammers in direct sunlight for extended periods.
  • Take care when storing: Avoid folding or storing them in a way that might stretch the fabric or damage the shape.

By following these care instructions, you can maintain the quality, appearance, and performance of your swim jammers, ensuring that they continue to serve you well during your swim sessions.

Avoiding Common Wear and Tear Issues

To keep your jammers swim shorts in good condition, avoid sitting on rough surfaces or abrasive pool edges. Don’t pull or tug on the seams to prevent unravelling. Wearing the right size is also essential to avoid excessive stretching.

Protect your jammers from excessive heat and direct sunlight to prevent fading and regularly inspect and adjust the drawstring if needed to ensure it still works!


Are high-end swim jammers worth the extra cost?

Whether high-end jammers are worth the extra cost depends on your priorities. They can offer performance enhancements, durability, better fit, and specialised features, making them valuable for competitive swimmers and frequent users.

Casual swimmers might find budget options sufficient for their needs.

Our list of favourite swim jammers are all reasonably priced, however, we truly believe they are also high-quality! So, no need to compromise on quality.


To sum it up, finding the perfect jammer swim shorts for outdoor swimming requires considering various factors such as material, size, design, UV protection, and brand reputation. It’s important to invest in swim jammers that offer durability, comfort, and a proper fit to enhance your performance in the water.

Taking care of your swim jammers is crucial for their longevity. Follow the proper cleaning and storage techniques to avoid common wear and tear issues.

While high-end swim jammers may come with a higher price tag, they often offer superior quality and performance. However, it’s essential to strike a balance between quality and cost to make the right investment.

So, whether you’re a competitive swimmer or enjoy outdoor swimming for recreation, choosing the best jammers can greatly enhance your experience in the water. Dive into your next swimming adventure with confidence and style by finding your perfect fit!