TYR Mens Thresher Cryo Jammer - Ocean Blue

Take two body measurements — waist and hip — using a soft tape measure against your skin. Compare to the sizing table above. If your measurements fall between two sizes, use your hip measurement as the primary guide. TYR's numeric sizing does not correspond directly to standard UK clothing sizes, so always use body measurements.

Competition racing jammers need to seat correctly over the hips before the waistband can sit flat. If the suit is too small in the hip, it will be extremely difficult to pull on and may cause discomfort or restrict movement during racing. TYR explicitly recommend using the hip measurement as the primary guide when between sizes on their competition racing suits.

TYR competition racing jammers are designed for a close, compressive fit and will feel significantly tighter than a training jammer. This is intentional — the compression is engineered to support the muscles and reduce drag during racing. The suit should feel firm and snug throughout but should not restrict breathing, movement, or blood flow. Allow 10–15 minutes to put the suit on correctly for the first time.

The Thresher, Tracer and Fusion 2 share the same sizing chart and are all competition racing jammers from TYR's performance range. They differ in fabric technology, compression level, and price point. Speak to a member of staff at Allens Swimwear for guidance on which TYR racing jammer is best suited to your level and budget.

TYR racing jammers are not designed for regular training use. Using them for training will significantly reduce their lifespan and degrade the performance properties of the fabric. Reserve your racing jammer for competitions and competition warm-ups. TYR offer a range of training jammers designed for everyday pool use — speak to a member of staff at Allens for recommendations.

TYR produces a range of competition racing jammers approved for use in sanctioned competitive swimming events. Always check with your event organiser or governing body to confirm that the specific TYR jammer you have purchased is approved for the level of competition you are entering, as approval status can vary by product and event.

If you are between sizes, use your hip measurement to determine which size to select. Competition racing jammers are designed for a very close fit, so if your hip sits at the top end of the smaller size, selecting the larger size will ensure the suit can be put on correctly and will sit flat without excessive tension. Speak to a member of staff at Allens if you are unsure.

Allow at least 10–15 minutes to put on a competition racing jammer correctly for the first time. Work the suit up gradually from the ankles, smoothing out any wrinkles as you go. Take care with fingernails — avoid pulling hard on the fabric. The suit should be completely wrinkle-free and smooth when correctly fitted. Do not use petroleum-based products, oils, or sun cream before putting on the suit.

Rinse your TYR racing jammer thoroughly in cold fresh water immediately after every use to remove chlorine and salt. Do not machine wash, tumble dry, iron, or dry-clean. Store flat and dry, away from direct sunlight. Avoid contact with sun cream, oils, or petroleum-based products as these degrade the fabric's performance properties.

TYR's original sizing chart lists all measurements in inches. Centimetre equivalents are available in the sizing table above — simply toggle between inches and cm using the button above the table. Both sets of values are body measurements taken directly from your body, not garment measurements.