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Zone 3

Zone3 - 2024 - The Original Classic 5:3mm Buoyancy Shorts

RRP: £75.00
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20 reviews Write a Review
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Zone3 - The Original Classic Buoyancy Shorts - 5:3mm



We rarely run out but if we do - we have good alternative products - the Zone3 Eliteand Zone3 3/2mm buoyancy shorts


Ideal for the more advanced swimmer to help improve upper body strength, hip rotation, and stroke


Buoyancy shorts give a more natural feeling of buoyancy compared to a pull buoy and assist swimmers in developing their swimming with extra core support. They are often worn as open water swimmers return to the pool to provide some of the buoyancy of a wetsuit.


Key Features


  • Designed as an alternative to a pull buoy
  • Provide more natural feeling whilst swimming
  • Enhanced core support


‘The Originals’ are made from top quality smoothskin neoprene and are stitched and bonded just the same as a triathlon wetsuit. The shorts are designed using 3mm neoprene down the centre and 5mm neoprene down the sides. The 3mm provides the additional buoyancy whilst the 5mm side panels complement this by promoting hip rotation through each stroke.


The shorts serve three main purposes:


  1. For novice or intermediate level swimmers the major factor which prevents them from swimming faster is the lack of core stability and leg kick. Their arm strength and technique are good but because they are not horizontal on the top of the water they create a lot of drag and ‘dead weight’ which makes it much harder to swim efficiently.


With the buoyancy shorts the swimmer can get more used to swimming in the correct horizontal and streamlined position, so they start to build a ‘neural pattern’ of how they should feel in the water. This also allows the swimmer to concentrate on making a more effective leg kick and better forward glide with each stroke, without that ‘sinking leg’ feeling.


With the extra buoyancy support, the swimmer can also focus more on the technique of their arm stroke, without the constant battle to keep the hips and legs in a high position in the water.


Results have shown that over time a swimmer’s body position, speed and endurance can be significantly increased by training with buoyancy shorts.


  1. Suitable for any level of triathlete who wants to refine their open water swimming technique whilst in a pool. Swimming in a wetsuit during a triathlon is very different to swimming without a wetsuit during a swimming race. The majority of your power needs to derive from your upper body whereas your legs and core provide the essential control. These shorts help develop your open water swimming technique whilst in the pool, where wearing a full wetsuit would either be too hot or banned by the life-guards.


  1. For use in open-water training or races as an alternative to swimming in a full wetsuit (when the weather is warm enough!).


This product has received hundreds of positive reviews from swimmers who have seen significant improvements in body position, speed and endurance by training with buoyancy shorts. Despite the great feeling they give a swimmer in the water it's best to only use these shorts during certain swim sets rather than the full session. Intended to be worn over your usual swim-costume.


What makes this product different:


  • Zone3 are the original designers of this product concept
  • Helped 1000’s of swimmers improve their swim technique and speed
  • New comfort focused waistband


The Buoyancy Shorts were first developed by Zone3 back in 2007. As the original inventors of this product, Zone3 thought it was appropriate to call their 5:3mm thickness, smoothskin shorts 'The Originals'. They now have over a decade of fantastic customer reviews behind them and have helped many thousands of swimmers to improve both their body position in the water and swim technique.


Sizes available are XS, S, M, L, XL and XXL. Each set of shorts has a drawstring so they can be tightened to any waist size but we would recommend the size XS for waist sizes 26– 28, S for 30-32, M for 32 – 34, L for 34 – 36 and XL 36-38, XXL 38+


The Brand:

As one of the most trusted triathlon brands, Zone3 creates products that aim to maximise your swimming experience.

A well-established British company, Zone3 is a brand whose products are designed by athletes for athletes.


Call us today on 0207 183 4116 for friendly, expert advice and for answers to any sizing queries you may have.


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20 Reviews

  • 5
    Buoyancy shorts

    Posted by Mick on 1st Feb 2024

    Tried everything to get those legs up and not dragging. Use a pull bouy no problem so decided after much research to go down the buoyancy shorts route. Plenty around at all sorts of prices. Many cheaper than these but with poor reviews. You get what you pay for, these are quality. Well made and yes they do the job. Does not completely replace the pull bouy but wow what a difference. Possibly 5 to 10 secs off my 100m splits straight away. If you just relax and float you can feel your legs rising. They also make it easier to rotate due I think to the 5mm neoprene on the hips. Great product yes you can get them cheaper but I don't think they can be the same as these as I cannot fault them. Go get yourself some you will not regret it.

  • 4
    Buoyancy Shorts

    Posted by John Haugh on 13th Jul 2023

    Much better than Pull bouy

  • 5
    So Buoyant

    Posted by Ben on 30th May 2023

    These provide great buoyancy, fantastic forn the pool.

  • 5
    They are a good product

    Posted by Sean Crossan on 7th Mar 2023

    I didn't think I would have to pay a customs charge?

  • 5
    Buoyancy shorts

    Posted by John on 25th Jan 2023

    Very comfortable fit and have helped me a lot with swimming

  • 5
    Buoyancy shorts

    Posted by Johanna on 4th Mar 2022

    Great shorts and brilliant return service as chose wrong size at first. Was recommended shorts and they work well.

  • 4
    Great bouyancy shorts

    Posted by Nick Kenyon-Muir on 28th Dec 2021

    Delivery within 2 days on normal delivery was great. Really good fit but you need to remember to retighten them after you get them wet as they loosen up. Great aid to help bouyancy and in my case wean myself off a pull bouy!

  • 5
    Great Product

    Posted by Jonathan Self on 29th Oct 2020

    This is my first pair of zone 3 neoprene shorts so cannot compare to others. What I can say is: Fit is great really comfortable Warm Drys quickly Very pleased and worth the £ I wear under my wetsuit so an extra layer of warmth

  • 5
    zone 3 buoyancy shorts

    Posted by Dave on 13th Sep 2017

    Very good. Allows me to float much better in the water. My best sport is running so I need help with buoyancy. I am 10 minutes faster in these shorts so my 50 min swim now takes 40 min.