Running & Trail in HydroSox waterproof socks

Running & trail

Waterproof socks for running and trail

Runners ask about weight and bulk before anything else, and they’re right to. Here’s the honest answer, and the runs these are actually for.

Product facts

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

The trade

Weight and bulk, honestly

A waterproof sock has three layers where a racing sock has one. There’s no version of this where the weight is the same, so here’s what the difference actually is.

  1. Bulk is the more real objection

    They’re about the volume of a cushioned training sock. In a race-fit shoe with no room, that matters. In a normal training shoe it doesn’t.

  2. What you’re trading it for

    Dry feet at mile ten in December instead of soaked feet at mile two. Whether that’s worth three layers is a question only your local weather can answer.

When not to

When these are the wrong sock

Every brand tells you when to wear their product. On a running page that’s close to useless, because the conditions these suit are narrower than the conditions people run in.

Buy a pair How it is built

Cold and wet is where these earn their place. That’s most of a British winter. It isn’t July.

Warm and wet

Summer rain is the worst case. The air is already saturated, you’re producing heat, and the sweat has nowhere to go. Wear a thin sock and accept wet feet.

Hard efforts in mild weather

Intervals, tempo, anything above steady in double figures. You’ll out-produce the waterproof layer within twenty minutes and finish damp from the inside.

A race-fit shoe with no room

If your racing shoe is already snug in a thin sock, don’t put a three-layer sock in it. This is a training and long-run product first.

Winter

The runs these are for

Not performance. Consistency — the training block surviving the months when it usually doesn’t.

  • Wet feet get cold fast

    A soaked foot at five degrees loses heat quickly, and cold toes are why a lot of winter long runs get cut short. Dry feet stay warm at temperatures where wet ones don’t.

  • Trail, crossings and standing water

    On a wet trail you stop picking your line around the puddles, which is faster and a good deal more enjoyable.

  • The pair waiting for tomorrow

    They air dry rather than tumble dry, which takes longer. If you run four mornings a week in winter you need more than one pair — that’s the honest reason the two-pair price exists.

Blisters

Blisters at running pace

Running compresses the same problem walkers have into a much shorter time, which is why runners feel it more sharply.

  • Wet skin is weaker skin

    Soft, wet skin gives up under friction far faster. Keeping your foot dry removes one of the three things a blister needs, and at running cadence that’s the one that changes quickest.

  • Fit does the rest

    A sock that bunches at the toe will blister you at any moisture level. Take the bigger size if you’re between two, and check for rucking before you set off.

  • We don’t guarantee this

    Some brands offer a blister-free guarantee. We don’t, because blistering depends on your shoe, your gait and your distance far more than on your sock.

Order

Choose your colour and size

Two pairs is the usual choice for anyone running through winter — one on, one drying.

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

Answered with the same facts as the rest of this page. If one of them contradicts something above, the answer above is the one that is wrong.

Something not here? Phone or email us

Are waterproof socks good for running?

In cold, wet conditions, yes — they keep your feet dry and therefore warm on winter miles and wet trails. In warm rain, or on hard efforts in mild weather, they’re the wrong choice, and this page says which runs those are.

Are waterproof socks too hot for running?

In summer, generally yes. The waterproof layer moves sweat out as vapour but it can’t keep up with a running foot in warm, humid air. In British winter conditions the balance goes the other way and they’re comfortable for hours.

Do waterproof socks feel bulky when running?

They’re about the volume of a cushioned training sock. In a normal training shoe that’s unremarkable. In a snug race-fit shoe it’s noticeable, and we wouldn’t recommend them for that.

What socks should I wear for trail running in the rain?

If it’s cold, a waterproof sock — wet feet lose heat quickly and that’s what ends winter runs. If it’s mild, a thin quick-draining sock and dry socks in the car. The temperature decides, not the rain.

Will waterproof socks stop blisters when running?

They remove one of the three causes, and at running pace wet skin is the one that changes fastest. Fit and shoe friction still matter, and we don’t offer a blister-free guarantee because neither of those is ours to control.

How many pairs do runners need?

Two or three if you run through winter. They air dry rather than tumble dry, so a single pair won’t be ready for tomorrow morning after a wet run today.

Buy a pair

Two decisions and a quantity. No account needed.

One sock. Weight and bulk, stated honestly.