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Sealskinz Thetford Waterproof All Weather Cycle Oversock



If you need extra insulation or a little bit of rain protection, these are decent value, if not the most robust
Increases warmth
Improves resistance to splashing
Adds visibility in the Neon Yellow version
Defeated by puddles or squishy ground
No reinforcement

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

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The Sealskinz Thetford Waterproof All Weather Cycle Oversock is a simple idea that works well. A waterproof and windproof layer for cleated road or gravel shoes that  ups your mildly-bad-weather game at a much lower cost than specific shoes. They aren't the most robust, mind, so if you'd prefer tougher, more traditional protection, check out our guide to the best cycling overshoes.

Welcome to riding in the UK – hope you brought your wellies.

Not the most appealing of openers, granted, but the reality is there's a reason this place is mostly green and lush – our position between a rather damp ocean and a European land mass that heats up, dragging the weather their way. En route, a fair amount of that evaporated seawater succumbs to gravity, and if you ride a bike on a regular basis you will inevitably encounter some of it, either on its downward trajectory or, after settling, being propelled upward by your front tyre as you blast through it.

Keeping your feet dry as well as warm is a perennial challenge for year-round cycling. You can invest several hundred quid in waterproof, insulated shoes – or you can add a removable layer of protection. That's where Sealskinz' Thetford oversock comes into the picture.

Sealskinz is a trusted name in the world of appendage protection, and in winter I mostly wear its heated waterproof gloves, on or off-road. I'm also a huge fan of the company's knee-length wader-fisherman's socks, to protect the lower legs. Paired with 3/4 bib knickers, you're much better protected and warmer than full tights.

The Thetford is a shorter sock that's extremely stretchy to fit over and around the contours of your shoes and any Boa buckles they might have. There are probably aero benefits too, if you care.

2023 SealSkinz Waterproof All Weather Cycle Oversock - side logo.jpg

The Thetford is available in four colours: blue, breen, black and a hi-vis Neon Yellow. There's some genuine science behind colourful feet being very visible to motorists, so the yellow is a great option for commuters and roadies. For the other colours, there's a small retro-reflective Sealskinz logo on the side.

Sealskinz claims the fabric of the Thetford is 100% windproof and waterproof, with a slightly fluffy cotton mix interior for insulation. You treat it like any other sock, just over the top of your shoe. It does take a bit of manoeuvring to get the two holes properly aligned with your heel and cleats, but nothing major.

2023 SealSkinz Waterproof All Weather Cycle Oversock - sole heel.jpg

What the Thetford is lacking is any reinforcement around the contact areas at the toe, midsole or heel, and after a few rides involving even short amounts of walking there were small holes worn in the fabric around the toe, and the stitching around the edge of the cleat hole was starting to fray. Hike-a-bike or serious off-road overshoes these definitely are not. Likewise, if you're a gravel rider who regularly has to stop to open gates or get over fences, chances are the Thetford isn't the overshoe you're looking for.

2023 SealSkinz Waterproof All Weather Cycle Oversock - sole toe.jpg

Out in 2°C for a few hours wearing normal merino socks over normal shoes, the Thetford definitely upped the warmth game. I was apprehensive that such a relatively thin additional layer would make that much difference, but my qualms were unfounded. Usually at that temperature I'm in my thickest, longest socks and a full-on winter waterproof boot, but my feet stayed warm and happy.

> Suffering cold feet? Find out how to keep your feet warm cycling through the winter

They were dry too – until I stopped to take a photo on some rather squelchy ground. That's when reality hit home: these are waterproof oversocks, but they don't make your normal shoes waterproof. The two huge holes in the bottom should have been a giveaway. Anyway, I finished the ride with warm-ish but definitely wet feet.

Out again in some hard rain for a few hours, things started off well enough, but over time the repeated drenching of my lower legs and underneath the soles eventually resulted in wet feet.

2023 SealSkinz Waterproof All Weather Cycle Oversock - cuff.jpg

So what type of riding is the Thetford Waterproof All Weather Cycle Oversock for? Not off-roading, that's for sure. And not for long days in pouring rain either.


At £40 they definitely aren't cheap – you can get a proper waterproof sock for that money, that will actually keep your feet dry and warm – but compared with other oversocks and overshoes, the price isn't that bad (as long as you look after them).

Ed found the longer GripGrab Flandriens similarly warm and not waterproof in the fabric, and they are £66.

George really liked the Spatz Roadman 3 Super-Thermo Hi-Viz Reflective Overshoes with Kevlar (say that three times fast), but they have looks only a mother could love and cost a relative fortune (£94.99).

Probably the closest comparison is with the Giro Xnetic H2O Shoe Covers that Leon liked when he reviewed them in 2022 – but again, at £69.99 vs the Thetford's £40, it seems Sealskinz wins the value game.


In summary, I'd say the Sealskinz Thetfords are good for colder days when you need a bit of extra warmth setting out, as a visibility tool for commuting, and maybe as a way to improve – but not redefine – water resistance in light or short periods of rain. If you have one pair of cycling shoes and you need to occasionally ride in the cold, or in a modicum of rain, or someplace you need more visibility, the Thetfords are a decent choice at a fair price.


If you need extra insulation or a little bit of rain protection, these are decent value, if not the most robust

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Make and model: Sealskinz Thetford Waterproof All Weather Cycle Oversock

Size tested: Large

Tell us what the product is for

They are for people riding in normal shoes, wanting more warmth and a bit of water protection in an easily-removable and possibly hi-vis package.

Sealskinz says:

The original, waterproof ankle length cycle oversock is lightweight and streamlined. Designed for use with cleated cycling footwear making them suitable for both road cyclists and commuters in a wide variety of weather conditions.


Our iconic waterproof sock technology, packed into a cycle oversock. Cold and wet feet while riding can be the worst. This oversock will not only keep your feet dry and comfy, but your cycling shoes will also stay as dry as your feet - bonus.


Designed to keep you dry, protected, and out on the road during chilly and wet weather, the Waterproof All Weather Cycle Oversock is an ideal choice when you can't fit a waterproof sock under your cycling shoe yet will most likely see some puddles or rain on your ride.


Featuring a three-layer bonded construction for warmth, durability, and 100% waterproofing,


Featuring reflective detailing for visibility in low light conditions and four-way stretch for a close fit.

Tell us some more about the technical aspects of the product?

From Sealskinz:

Our 100% waterproof oversocks are constructed using premium materials to make one highly waterproof and protective shoe covering:

* Outer Layer - 93% Nylon, 7% Elastane * Middle Layer - Aquasealz® waterproof membrane * Inner Layer - 52% Polyester, 27% Cotton, 21% Elastane

How do I care for the Thetford?

We don't like complicated things. And when it comes to the care of your socks, we want to make it as simple as possible. This is the type of sock you can throw in the wash along with the rest of your gear. No need to line dry or wash with special detergents. Since the membrane is a solid barrier, you'll never need to re-waterproof.

* Wash at 40°C/105°F

* Low Tumble Dry or Drip Dry

* Do Not Dry Clean, Iron, or Bleach

Rate the product for quality of construction:

The stitching could be more robust.

Rate the product for performance:

Out in drier weather but hard cold, they really did make a difference.

Rate the product for durability:

It is not a robust sock, with wear holes appearing after only a few rides.

Rate the product for fit:

Fitted snugly and evenly.

Rate the product for sizing:

Sized well.

Rate the product for weight:

Very light.

Rate the product for comfort:

The warmth and even stretch makes for loads of comfort.

Rate the product for value:

At £40, they are pretty good value compared with rivals – if you look after them.

How easy is the product to care for? How did it respond to being washed?

Fine – wash with everything else.

Tell us how the product performed overall when used for its designed purpose

If your 'purpose' doesn't include walking or riding in heavy rain for a long time, they do the job.

Tell us what you particularly liked about the product

The added warmth.

Tell us what you particularly disliked about the product

Lack of reinforcement.

How does the price compare to that of similar products in the market, including ones recently tested on

For a waterproof, stretchy fabric they are a pretty good price compared with others – GripGrab's Flandriens are £66, Giro's Xnetic H2O Shoe Covers are £69.99, and the Spatz Roadman 3 Super-Thermo Hi-Viz Reflective Overshoes with Kevlar are £94.99.

Did you enjoy using the product? Yes

Would you consider buying the product? Possibly

Would you recommend the product to a friend? With caveats, yes.

Use this box to explain your overall score

They're quite good; I'm mostly marking them down on durability – the lack of reinforcement means they will wear fast with regular use.

Overall rating: 6/10

About the tester

Age: 47  Height: 183cm  Weight: 77kg

I usually ride: Sonder Camino Gravelaxe  My best bike is: Nah bro that's it

I've been riding for: Over 20 years  I ride: A few times a week  I would class myself as: Expert

I regularly do the following types of riding: cyclo cross, general fitness riding, mtb, G-R-A-V-E-L

Living in the Highlands, Mike is constantly finding innovative and usually cold/wet ways to accelerate the degradation of cycling kit. At his happiest in a warm workshop holding an anodised tool of high repute, Mike's been taking bikes apart and (mostly) putting them back together for forty years. With a day job in global IT (he's not completely sure what that means either) and having run a boutique cycle service business on the side for a decade, bikes are his escape into the practical and life-changing for his customers.

Add new comment


leipreachan | 1 day ago

all my stuff from sealskinz was:
- cold
- water-not-proof
- stupidly thick
- quite expensive

gloves, overshoes, socks, hat

wtjs | 2 days ago

Every time this stuff turns up, I write that the obvious sensible solution is the £10 Aldi waterproof socks inside whatever cycling shoes you use. Hey Presto! problem solved. I used them only a week ago on a 3 1/4 hour 72km round of Fylde/ Wyre. It was 4C when I set off and 2C when I got back. I've used them on a wet 7 hour trip with trailer up into the Lakes. They work and last a long time.

Oldfatgit | 2 days ago

Just like the town of Thetford*, these appear to be a bit of a damp squib.
* home of Thomas Paine, Dad's Army and Centurion Helmets. Not the manufacturer of portable toilets, which *arent* made in Thetford and are probably the best portable toilets going.

Freddy56 | 2 days ago

Watching friends walk accross stones in a car park and complain tht there are holes in their Velotoez!! Like the reviewer, these are socks

"What the Thetford is lacking is any reinforcement around the contact areas at the toe, midsole or heel, and after a few rides involving even short amounts of walking"

Walk on heel and cleat and they are fine

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