Men's swim jammers

What the World Aquatics regulations say about jammers

Since 1st January 2010, the international federation, now World Aquatics, has banned men from wearing any swimsuit that goes above the navel or below the knee: the jammer fits these limits perfectly. The same regulations require a textile fabric, woven or knitted, and prohibit coatings that would close the mesh, which ended the use of polyurethane suits from the Beijing Games and the World Championships in Rome. Zippers are banned; only a drawstring at the waist is allowed. In official competition, the model must be on the approved swimwear list.

The other swimwear

Men's swimwear also includes:

• Swim brief.
• Boxer shorts.
• Board shorts.

All swimsuits are gathered on the men's swimwear page.

Polyester or elastane: a fabric that withstands chlorine

Chlorine damages elastane, the fiber that makes a swimsuit stretchy: after a few months of daily use, a classic jammer loses its shape, fades and becomes transparent. Training ranges therefore replace a significant portion of this fiber with polyester. The TYR Durafast Elite combines ninety-four parts of polyester with six of elastane, and the Nike Hydrastrong relies on a polyester that keeps its colors. The Speedo Eco uses recycled fibers, and Arena offers its jammers in Solid and Team styles in solid colors and its prints Kikko, Fruits or Sunny for those who want to stand out in the lane.

Powerskin, Zone3: the racing jammer and how to put it on

The competition jammer is made of a denser, more compressive fabric that hugs the hips and thighs to limit muscle vibrations and drag. The Arena Powerskin ST Next, the first approved racing suit made from recycled fabric, is aimed at club swimmers who are trying these designs for the first time; the Powerskin Carbon Glide, more technical, targets finals. The Zone3, approved, comes from a British brand born in triathlon. Such a jammer can be put on in ten to fifteen minutes, pulling the fabric up in small steps with your fingertips, never with your nails. It's reserved for races, as chlorine quickly reduces its compression.

Good deals

Great bargains can also be found in the good deals, promotions, clearance, sales, Black Friday. The new arrivals showcase the latest collections, and items shipped in 24h are prepared and sent within 24 hours. The year's highlights follow a consistent order: Black Friday in late autumn, the end-of-year holidays, the winter sales, French Days in spring, then the summer sales and back-to-school period.

Frequently asked questions

Are there neoprene jammers?

Yes, for triathlon and open water swimming, where neoprene provides buoyancy and warmth in cool water. However, they are banned in pool swimming competitions, which only allow fabric swimsuits.

How to choose the size of a jammer?

The jammer is chosen based on waist size or equivalent trouser size, according to the brand's guide. For training, it should fit without overly tightening the drawstring; a racing model is sometimes taken a size down for maximum compression.

Is a jammer suitable for a young swimmer?

Yes, Arena notably offers the Powerskin ST Next in junior sizes for club swimmers who are starting in competition. In training, many young swimmers prefer the jammer for its support on the thighs during dives and turns.

How to prolong the life of a training jammer?

Rinse it in cold water right after leaving the pool, without leaving it rolled up in a wet towel. Dry it flat and in the shade, and alternate two suits if you swim every day: elastane regains its shape between sessions.

What jammer for a stocky swimmer?

Training jammers come in larger sizes, expressed in waist measurements. For a heavier build, a thick polyester fabric and a sturdy drawstring keep the swimsuit well in place during tumble turns and dives.