Running through a flooded suburban street in HydroSox waterproof socks

Waterproof socks

Waterproof socks that keep your feet dry

A waterproof layer sealed inside a knitted sock. Your boots can soak through and your feet stay dry. Hiking, work, cycling, running and wudu.

Waterproof layer
Porelle® membrane
Build
Three layers
Sizes
UK 3 to 14
Price
From £20 a pair

The basics

What a waterproof sock is

A waterproof sock looks like an ordinary sock and has a thin waterproof layer sealed between two knitted layers. The knit gives it the fit and feel of a sock. The layer in the middle stops water reaching your foot, while still letting sweat escape as vapour.

Worn inside a boot or a shoe, it keeps your feet dry at the point your footwear can’t any more — four hours into a wet walk, or on the ride home in shoes that never dried out.

How they work

Three layers, and why

One waterproof layer on its own would be uncomfortable and wouldn’t last. The other two are there to make it wearable.

Scroll to take it apart.
A HydroSox sock separating into its three layers

The lining

Against the skin

A knitted layer against your skin. It moves sweat away from the foot and stops the waterproof layer sitting directly against you — which is what makes it feel like a sock rather than a bag.

The limits

Three things no waterproof sock does

Nobody in this category writes this bit down. It’s also the part that decides whether waterproof socks are right for you, so it goes above the price rather than below it.

Water deeper than the sock

A sock is open at the top. Step into water higher than the cuff and it fills, the same as any sock. The only thing that changes where that line sits is how tall the sock is.

Very hard work, for a long time

Breathability is real and it has a limit. Work hard enough for long enough and your foot produces vapour faster than the layer can move it. You end up damp from the inside instead of the outside.

A hole in the waterproof layer

Once it’s pierced — by a toenail, a thorn, a sharp stone inside a boot — the waterproofing is gone and can’t be put back. No wash, spray or reproofing treatment brings it back.

By use

Who they’re for

The sock doesn’t change. What changes is which of these sounds like your week.

  • Pulling on a pair of white HydroSox while seated

    Wudu and masah

    Making wudu five times a day, often somewhere that wasn’t built for it. Waterproof wudu socks are how most people find this site.

  • Hiking on a wet hillside in HydroSox waterproof socks

    Hiking and walking

    Waterproof walking socks for the point, usually four hours in, where a boot has soaked through and there’s nowhere on a hill to dry anything.

  • A long shift in work boots wearing HydroSox waterproof socks

    Work and boots

    Waterproof work socks for a ten-hour shift where the boot keeps the rain out and then keeps everything your foot produces in.

  • Riding on a city road in HydroSox waterproof socks

    Cycling and commuting

    Waterproof cycling socks for road spray, and for shoes that are still wet at home time because nothing dried at the office.

  • Running a wet winter trail in HydroSox waterproof socks

    Running and trail

    Waterproof running socks for cold winter miles and wet races — with the honest caveat about weight and warm weather on that page.

The alternatives

Compared with the alternatives

Most people reading this are choosing between four things rather than four brands. Here’s where each one wins.

Four ways of keeping feet dry, and where each one wins.
The option Good when Not so good when
Ordinary socks and waterproof boots Good when The ground is wet but shallow and the day is short enough that the boot doesn’t soak through. Not so good when The boot soaks through, or water comes over the top of it.
Waterproof socks with any footwear Good when The footwear is going to get wet and you’ve accepted that, but your foot mustn’t. Lets you wear lighter or cheaper shoes. Not so good when Water goes over the top of the sock, or you’re working hard enough to out-sweat it.
Overshoes, for cycling Good when You want to keep the shoe itself dry and block wind as well as water. Not so good when They leak at the ankle, wear through at the heel, and are awkward to put on in the dark.
Both together Good when Genuinely cold, genuinely wet, genuinely long. The most effective and most expensive option. Not so good when Anything milder — you’ll overheat.

Choosing

How to choose a pair

Whoever you end up buying from, these four questions separate a waterproof sock that works from one with the word printed on the label.

  • Is the waterproof layer named?

    An unnamed “waterproof laminate” is a claim with nobody behind it. A named one is made by a company that has to stand behind it. Ours is Porelle®.

  • How many layers, and does it say?

    Three is the standard build: lining, waterproof layer, outer knit. If a listing doesn’t say, it’s usually because the answer is two.

  • Is it sized on the foot or the shoe?

    Shoe sizes aren’t consistent between brands. Foot length is. A brand that publishes foot-length measurements has thought about fit.

  • Does it say what it won’t do?

    This is the one that sorts the category. Every waterproof sock has the same three limits. Very few sellers print them.

Order

Choose your colour and size

One price, whichever page you came in on.

Colour
Size
Quantity

Delivery
Free UK delivery on two pairs or more
Dispatch
UK company, UK warehouse
Checkout
Guest — no account required
Payment
Visa · Mastercard · American Express · Apple Pay · Google Pay · Shop Pay

Size guide

Measure the foot rather than relying on shoe size — sizing is not consistent across brands, and the foot length is what actually has to fit.

Size Foot length UK shoe
S 22.0 - 24.0 cm UK 3-5
M 24.5 - 26.5 cm UK 6-8
L 27.0 - 29.0 cm UK 9-11
XL 29.5 - 32.0 cm UK 12-14

How to measure

Stand on a sheet of paper with your heel to a wall, mark the tip of your longest toe, and measure heel to mark.

Between two sizes

Between two bands? Take the larger one. These are a close, stretchy fit — a size down grips the toes and shortens the life of the membrane.

The full sizing and fit guide

Questions

Common questions

Something not here? Phone or email us

Are waterproof socks worth buying?

If your feet get wet on a regular basis — a job, a commute, a weekly walk, daily wudu — then yes, because the problem keeps coming back. For one wet holiday a year, probably not.

What’s the difference between waterproof and water-resistant socks?

A waterproof sock has a sealed layer inside it and stops water. A water-resistant sock has a treated or tightly knitted surface that shrugs off light rain for a while and then wets through. If a product doesn’t name a waterproof layer, it’s usually the second kind.

Are waterproof socks warm?

Warmer than the same sock without the layer, because they block wind and stop your foot cooling as water evaporates. But they aren’t insulated. Waterproof and warm are two different things worth choosing separately.

Can you wear waterproof socks every day?

Yes. Wash them cool and air dry them between wears. Most people who wear them daily keep two or three pairs so there’s always a dry one ready.

Are waterproof socks breathable?

They’re breathable, not ventilated. The layer passes sweat outwards as vapour, which delays the point where your foot feels damp. On a hard, sustained effort you’ll produce more than it can move. That’s physics, not a fault.

Do waterproof socks work in snow?

They keep melted snow out well and they block wind, which is most of what makes feet cold. They aren’t insulated though, so in properly cold weather you want them for the dryness rather than the warmth.

Are they suitable for swimming or the shower?

No. They’re built for water arriving from outside during normal use — rain, spray, puddles, wet ground — not for being under water. We’d rather say so than take the sale.

What are the best waterproof socks in the UK?

Judge them on four things you can actually check: is the waterproof layer named, is the number of layers published, is sizing based on foot length, and does the seller say what the socks won’t do. Most listings fail at least two.

Buy a pair

Two decisions and a quantity. No account needed.