SZOKZ FAQ: Sizing, Compression, Care & Delivery

Every SZOKZ sock is 65% nylon, 15% polyester and 20% spandex, with no cotton. Nylon gives abrasion resistance, polyester is hydrophobic so it moves sweat rather than absorbing it, and the high spandex share delivers the compression and stops the sock bagging out. Most sport sock brands do not publish their composition at all.

Every SZOKZ sock is built at 20–30 mmHg through a targeted mid-foot wrap. Compression is measured in millimetres of mercury: 8–15 mmHg is light, 15–20 mmHg is moderate and covers most sportswear, and 20–30 mmHg is the firm band used for sustained load and recovery. If a brand says “compression” without a number, no measurable claim is being made.

They will feel noticeably firmer than an ordinary sock, and that is intentional — the mid-foot wrap is what stabilises the arch. The compression is targeted through the arch rather than uniform, and the top flap is non-binding so it does not dig in at the calf. If you have a circulatory condition or diabetes, check with your GP before wearing firm compression.

Traction socks do. Their grip zones sit at the ball and heel of your foot — the two areas that actually slip — rather than covering the whole sole. That keeps the midfoot free to flex and means the sock dries faster than a full-sole grip pattern. All Sport, Swift and Summit are compression socks with no grip.

Traction socks do: it is the only SZOKZ range with grip. In an ordinary sock your foot moves inside the sock and the sock moves inside the shoe. Traction's grip zones remove the second movement, so force transfers straight into the shoe. The effect is most obvious in sports with hard changes of direction, and in fixed-foot sports like rowing and cycling.

They tackle both causes. Blisters come from friction plus moisture — every range uses cotton-free fibres that move sweat away from the skin, and Traction’s grip zones also cut the sliding friction inside a boot. No sock can promise zero blisters, but reducing friction and moisture is what makes the difference.

Yes. Each pair has an ergonomic left-right anatomical fit, so the cushioning sits where that specific foot loads rather than being mirrored. Check the marking before you put them on — on Traction, wearing them on the wrong feet puts the grip in the wrong place.

SZOKZ were originally engineered for rowing, specifically for footplate grip and recovery. Today they are worn for running, cycling, football, gym and lifting, tennis, CrossFit and cricket. Arch compression carries across all of them, and Traction adds grip zones for sport in a boot, and we make sport-specific ranges — Traction for high-intensity sport in a boot, All Sport for general training, Swift for low-cut trainer use, and Summit for hiking. Traction is the only range with silicone grip zones; the other three are compression socks.

Measure from your heel to your longest toe and match it to the chart below.

All our socks have a loose fit. If you prefer a tight fit, size down to medium.

All our socks have a loose fit, so if you prefer a tight fit, size down to medium. If you like a relaxed fit, take the larger size.

Machine wash at 30°C, inside out, to protect the colour and, on Traction, the grip zones. Do not tumble dry and do not iron — heat is what destroys silicone grip. Air dry flat. Washed this way they last considerably longer than the 10–15 washes people report when they tumble dry grip socks.

Grip is on Traction only. Heat is the limiting factor, not wear. Washed at 30°C and air dried, the grip zones outlast normal use by a wide margin; tumble drying degrades them within a fraction of that. The reinforced heel and toe construction is what determines how long the sock itself survives.

UK delivery is free on orders £30 or more. Below that, standard delivery is charged at checkout.

UK orders are dispatched within 1 business day and standard delivery takes 2–3 business days. You will get a tracking link as soon as your order ships.

30-day returns on unworn, unwashed pairs in their original packaging. Email us with your order number and we'll send the return address.

Choose 4 or 6 pairs and we deliver them every 3 months at our lowest per-pair price. You can skip a delivery or cancel in one click, with no fees and no minimum commitment. Your first order ships within 1 business day like any other.

Yes, in one click, at any time, with no fee. You can also skip an individual delivery or change how often it arrives without cancelling.

A single pair is £7.99. In a 6-pack the price drops to £5 a pair because the packing and shipping cost is spread across the order rather than repeated on each one. Most athletes end up rotating several pairs a week anyway, so the multi-pack matches how the socks actually get used.