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Zone3 Neoprene Heat-Tech Warm Swim Socks


We tested these Zone3 Heat-Tech Warm Swim socks and at 3.5mm of neoprene, they are one of the warmest available. These socks are slim fitting, have a thermal lining and will be perfect for swimmers who wish to swim in the early spring or through the autumn/winter and those who suffer from cold feet.


Product Description

We’ve tested these Zone3 Heat-Tech Warm Swim socks and at 3.5mm of neoprene, they are one of the warmest available. These socks are slim fitting, have a fabric lining, and will be perfect for swimmers who wish to swim in the early spring or through the autumn/winter and those who suffer from cold feet. 

They are made from high-stretch neoprene to ensure a great fit and flexibility during the swim.

The seams are glued, double-blind stitched, and then liquid-sealed on the external side to help ensure they are watertight and durable. Liquid seam-sealing is what sets quality swim socks and gloves apart from the rest.

We also really like the ‘Waterblock system’, a circular seal at the top to help keep water ingress to a minimum. There’s also a Velcro strap to help minimise any water entry. The neoprene Heat-Tech swim socks also feature a durable gripped sole for walking to and from the water. 

Zone3 Neoprene Heat-Tech Warm Swim Socks Features: 

  • 3.5mm high-stretch neoprene
  • Fabric-lined for comfort
  • Slim fitting
  • Liquid-sealed seams, are very important for reducing ‘flush-through’.
  • ‘Waterblock system’ seal  and Velcro strap to help reduce water intake
  • Durable gripped sole that’s not too buoyant.

Overall a great design that does not compromise warmth and doesn’t have too much buoyancy. The liquid-sealed seams and circular seals are excellent features to help stop the water from flushing through.

A great pair of socks to keep you warm and in the water for as long as you can manage.

NB: current available sizes are BLACK/RED

Zone3 Socks Size Guide For UK Sizes.

There is an official Z3 size chart in the product images, however, we tend to find the socks are roomier than this suggests. We often find the Z3 socks are more like:  XS =  4-5, Small = 6 -7, Med = 8-9, Large = 10 – 11, XLarge = 12+.

For more advice on fit and which sock to buy, read this article: Swim Socks Size for Swimmers

Additional Information


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*** PLEASE NOTE: owing to ongoing customs issues related to Brexit, we are unable currently to ship goods outside the UK. We are very sorry about this. We hope this will be resolved soon. ***

In most circumstances, we use Royal Mail for our deliveries, occasionally we use a courier.

STANDARD – This service, selected at checkout, typically takes between 3-5 working days for delivery (excludes weekends and bank holidays).
EXPRESS Postage – This service typically takes 1 working day, but can take 2. (please place your order by 1pm). This service requires a signature and cannot be left in a safe place.
INTERNATIONAL Postage inc ROI – This service typically takes 15 working days.
Customers in Ireland will need to pay customs charges to the Irish Revenue before their parcel is delivered. ‘An Post’ collect customs charges and cannot deliver your items until these charges have been paid. Please look out for your notification from An Post via post/SMS/email.

**Delivery is still taking longer than usual in some areas due to ongoing effects of the pandemic**
Deliveries to Ireland, NI, and Channel Islands are taking considerably longer than usual (more than 2 weeks in some cases) due to custom changes after BREXIT.

* We will send an email upon dispatch. Please check your junk folder if you don’t see it.
* We are unable to pass any messages on to your local postman.
* Requests to leave parcels in unsecured locations are done entirely at your own risk.
* Please take care to enter the correct delivery address as we may be unable to rectify any mistakes.
* We are unable to split orders/deliveries, If any one item in an order is not available from stock we would usually despatch your order once all the items are available from stock to send as one parcel.

Christmas 2022

If your item is needed for Christmas we recommend our ‘express UK’ Service from the 18th Dec 2022.

No orders are dispatched on Christmas day, Boxing day, New Years day,  Saturdays and Sundays and Bank holidays.

Post & Packing Charges:

Free UK standard delivery for orders £75 and over.

Standard Mainland UK Delivery: For orders under £75, delivery is £2.99 – £3.99 for most items.

Express UK – £7.99. Postage is always quoted at checkout before your payment is taken.

ROI – The delivery charge to Ireland is £3.99 – £13.99 depending on parcel size and weight.

International Delivery – Within Europe, we deliver to Belgium, Denmark, Finland, France, Germany, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden. The delivery charge to Europe is £8.99 – £15.99 depending on parcel size and weight.

Please select your country from the drop-down box in the delivery address section, when completing your order, and the delivery charge will be displayed. (If the charge is not displayed please ‘contact us’ so we may arrange payment via a separate link).


It is very rare that parcels are lost, however, they can be delayed due to issues out of our control including adverse weather, high volume internet shopping times, and pandemics. If you do not receive your order within 7 working days of your dispatch confirmation email please notify us and we will investigate.
Parcels to ROI and NI are taking considerably longer than normal, please allow 15 working days.

For full Delivery and Returns information including how to return your item, please click the link.

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