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Boom Splice Jammer

Featuring Speedo's new signature print Boom
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Product Code : 810856B870

Boom Splice Jammer

Featuring Speedo's new signature print Boom Read More
Product Code : 810856B870
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Featuring Speedo's new signature print Boom

Featuring Speedo's new signature print Boom, these Jammers made from our Endurance®+ fabric, are perfect for fitness training and offers a comfortable fit thanks to its four way stretch technology. The black and blue Boom Splice Jammer is designed to hug the contours of your body to create a hydrodynamic profile in the water. They may feel soft when they're on, but they're reassuringly secure too with their drawstring waist.

Features and Benefits

  • Drawstring Waist - For enhanced fit and security
  • Integral support for enhanced comfort
  • 100% chlorine resistant, so your swimsuit won’t degrade in the swimming pool
  • Freedom to move – 4 way stretch technology for comfort and softness
  • Endurance®+ fabric retains its shape and resists fading longer than any other swim material.


Designed to last longer

Our most durable fabric, Endurance+ uses a blend of PBT and Polyester fibres to provide 100% chlorine resistance, with a higher level of snag and fade protection than traditional swim fabrics.

Featuring multi-directional stretch fabric for improved softness, our Endurance+ fabric offers excellent comfort and fit properties, so you can simply focus on your swim.


Boom Splice Jammer reviews verified by reevooReevoo

(9.8 out of 10)
Value for money
Overall rating
Scores 9.8 out of 10 based on 6 reviews
(10 out of 10)


I purchased these as a Christmas gift and am told that they are fantastic, a good fit and feel really nice. Great for the serious swimmer!
Confirmed purchase: 25 November 2017
Published on: 29 January 2018
(10 out of 10)


43 YO triathlete, runner
Very comfortable in the water (pool) - feels a lot better when swim training that beach shorts.
Very snug (as they should be for speed) - not sure I'd wear them on the beach.
Confirmed purchase: 20 September 2017
Published on: 26 October 2017