Tom Seddon, founder of SEDZ, racing
Our story

Made by runners, for runners

Hertfordshire, England

We build one product and we build it properly

Tom Seddon, founder
Tom Seddon, founder.

Hello, and thanks for stopping by. SEDZ is a small, family-run business based in Hertfordshire, started by me, Tom Seddon. I'm an ultrarunner and Ironman athlete, and like a lot of runners I spent years putting up with blisters and sore feet after long races.

I tried almost every running sock I could find, but none gave me the right balance of cushioning, support and breathability. So I set out to create one that did, and spent a long time testing and refining the design until it felt right on both road and trail.

The result is The Runner's Sock, made in the UK and designed to keep your feet comfortable from the first mile to the last. We're a small team, we read every message ourselves, and we're always happy to help, whether you're training for your first 5k or your next ultra.

Your next PB starts at your feet.
Tom Seddon, founder
01

One product

We make one sock. Every hour goes into the same pair rather than a catalogue nobody needed.

Sock-knitting machine at the UK factory where SEDZ socks are made
02

Made in the UK

Knitted in Britain on machines we have stood next to. Not white-labelled, not imported.

Core White SEDZ socks on the factory finishing line
03

Family run

Tom, and the family around him. The person answering your email packed your order.

SEDZ socks in their recycled paper sleeve
✔Made in the UK ✔30-day comfort guarantee ✔12-month hole guarantee ✔Tested on road and trail ✔Family run
Ready when you are

Run better. Feel the difference.

£14.99 a pair. Five colourways. 30 days to change your mind.