Speedo LZR Pro Jammer


Although the Speedo LZR Pro has been around a while, it's worth considering as an entry-level technical suit.

The suit delivers many of the advanced features for a very reasonable price.


The Speedo LZR Pro Jammer is one of Speedo’s mid-range technical race suits for men.

Speedo, based in London UK, is the world wide top-selling race swimsuit company. Many of the planet’s best swimmers compete in Speedo’s swimsuits and the majority of the present-day world records were established by swimmers using their suits. Speedo is one of the leading swimsuit innovators and its Aqualab facility explores new textiles and manufacturing techniques to help build a faster swimsuit.

In 2010, Fédération Internationale de Natation (FINA) prohibited the use of full-length swimsuits. Since then, jammers have become the most used style of competition swimsuits for males. The jammer suit must abide by strict FINA rules before it is approved for racing. The suit can cover the swimmer’s upper legs but not their knees and should be made using a weaved textile.

LZR Pulse Fabric

A jammer’s fabric is perhaps the biggest thing to consider when selecting one. There have been a lot of developments in swimsuit fabric over the last few years. Many of these enhancements have been aimed at creating a swimsuit that’s light as well as aqua-repellent.

The LZR Pro Jammer is Speedo’s mid-range suit (MSRP $180) and uses their LZR Pulse fabric. The fabric was developed in Speedo’s Aqualab and is a blend of 75% nylon and 25% LYCRA Spandex.

Compared to jammers made from a polyester blend, the nylon fabric helps make the suit more comfortable, lighter and faster to dry. However, nylon has a tendency to lose color and shape quicker than polyester.

The Spandex fabric helps create a tight fit and compress the swimmer’s muscles. Speedo’s LZR Elite Jammer similar blend of fabrics but has a 65% nylon / 35% Spandex blend. This fabric, called Pulse+, and gives the swimmer extra muscle compression.

LZR Pro Uses Low Profile Seams

In addition to introducing inventive fabrics, many swimsuit providers are also adding innovative manufacturing procedures. These techniques are geared towards reducing the drag factor of the swimsuit. For instance, production procedures that use seam bonding, rather than the conventional stitching, help reduce drag produced by the swimsuit’s seams.

While Speedo’s LZR Elite jammer uses stitch-less bonded seams, the LZR Pro jammer uses traditional stitching. However, Speedo uses vertically orientated stitches which align with the direction of the swimmer to help reduce drag.

A last thing to consider when picking a swim jammer is the suit’s fit. Using optimal fabrics and production techniques, competition jammers try to compress the swimmer’s muscle mass. This muscle compression not only helps in cutting drag but also helps with oxygen circulation, supporting a faster recovery.

Speedo uses a 3-piece pattern with the LZR Pro jammer that is engineered to optimize the swimmer’s body. To arrive at this pattern, Speedo took hundreds of 3-D body scans from the world’s fastest swimmers. The result is a suit that delivers solid muscle compression which helps keep the swimmer streamline and aids faster recovery.

The swimsuit has been accredited for competition by NCAA and FINA. The Speedo LZR Pro jammer is available in black with green stitching or black with blue stitching. All-in-all, the suit is a great

The LZR Pro is one of Speedo’s mid-range swim jammers. They also offer the LZR Elite Jammer, Fastskin FSII Jammer, FS-PRO Jammer and the Aquablade Jammer

Ratings & Reviews

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Hydro Repellency
Rating: 9.3/10 (2 votes cast)

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