Delivery to UK Mainland from £2.50
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14 Day Refunds & Return Policy

Hotsox Thermal Socks


Northern Diver's Hotsox thermal socks are constructed from moisture-wicking fleece to a tailored design, with a special integrated heel protector.

The socks are double-side flatlock stitched, so there's no raised seams to cause discomfort.


• XS: 3-4 Boot

• S: 5-6 Boot

• M: 7-8 Boot

• L: 9-10 Boot

• XL: 11-12 Boot

• XXL: 12-13 Boot

• XXXL: 13+ Boot


  • Designed for dry, warm and comfortable feet
  • High wicking fleece
  • Mid length
  • Available in six sizes (listed in description)

Delivery, Returns & Instore Collection

When will I receive my order?

International Delivery Times

Monday – Friday 3 – 5 Working Days

UK Mainland Delivery Times

Monday – Friday before 2pm Next Working Day
Monday – Friday after 2pm 2 Working Days
Saturday & Sunday 2 Working Days

UK Extended Areas Delivery Times

Monday – Sunday 3 – 5 Working Days

Please note delivery times may be extended during busy periods.

EU Areas

Please note that due to changes by HMRC, orders being shipped to EU countries will not be shipped on the same day as they are invoiced. EU Orders will now be shipped on the next working day. This only applies to E.U. orders. Domestic and Worldwide shipments remain the same.

Collect In Store?

When you go to the online checkout, you can opt to collect your items in store. We'll let you know when your order is ready for you to collect. Your order will normally be ready to collect the next working day.

Returns, refunds or exchanges?

You can return any item within 28 days of receipt for a refund, provided the item is unused, in its original packaging and in 'as new' condition.

Items will be refunded in full (less postage) if received within 28 days from the date of despatch.


We aim to deal with all returns and exchanges on the day they arrive, however please allow longer during peak periods.

You can return the item(s) by dropping them off in store or by returning the item(s) by post. We do not insist on a specific courier service for the return, so please use the most economical or appropriate method for returning the item(s).

Northern Diver (Int) Ltd
Appley Lane North
Appley Bridge

If an item becomes faulty after a period of time then please contact customer services (01257 254 444 or prior to returning the item. We will either repair or replace the item at our discretion.

Tell Us What You Think

Customer Reviews

4.3 out of 5 Stars (3 reviews)

Write a Review

Better Than Cotton Socks

By Cold on 29 Oct. 2011

They're better than just cotton socks, and keep the moisture away from my feet. However, in 4-6 degrees C water, I still need a pair of extra thick 2.5 tog socks on top just to keep it bearable.

The Best Thermal Diving Socks

By Bernard G on 06 Dec. 2014

These thermal diving socks from Northern Diver do what it says on the tin - They’re hot and they’re socks..! Tried a number of different drysuit sock manufacturers over the last 15 years, all with varying degrees of success. Some socks were warm, some comfortable, some at a great price and I don’t know why I didn’t try NDiver first, as my Northern Diver Neoprene drysuit has outlasted all the other drysuits I have had over the years and has given me the warmest most comfortable dives of any drysuit. These drysuit socks tick all the boxes, super warm, very comfortable and at less than a tenner, they won’t break into the overseas dive trip fund.. My feet have never been warmer. Thanks Northern Diver, should have trusted you first, before splashing the cash on more expensive imitations ;-)

Hot Sox Keep Their Promise

By Andy Piggott on 19 Mar. 2015

I started using my Hot Sox from the start of the season, with seabed temperatures around 7C and have found them to be very good. I wear them over a pair of ankle socks and they have been comfortable to wear and nice and warm as well. I find that they also help getting in and out of my drysuit as their smooth texture slides easily in the legs of the drysuit. They are quite thin and have replaced a very bulky thick pair of socks, which I used previously. My only reservation is that they will probably not last as long as a thick pair of socks. However, at the price, I would definately say that they are worth it.


Non-Magnetic Item

Non-Magnetic Item

To use the non-magnetic symbol for our diving suits and equipment, we have our products individually tested at QinetiQ, Portland.

Unisex Sizes

Unisex Sizes

This suit is available in unisex sizes. Look at the documents tab to view our size charts and measuring guide.


Trade Customers

Northern Diver offers trade accounts. Please click here to register your details and find out if you qualify. Once your trade account has been confirmed you can view all trade prices and shop easily online when logged into your account. Please note when you are not logged in to your trade account retail prices are shown. If you have any queries please do not hesitate to contact us. Tel: +44 (0) 1257 25 44 44.