Thetford

Sealskinz

£40

The original, 100% waterproof, ankle length cycle oversock. Lightweight and streamlined, the Thetford is the ultimate oversock for cleated cycling footwear. Signature Aquasealz™ technology combines waterproofness with breathability, letting perspiration escape. Reflective detailing offers greater visibility at night. Polyester and nylon blend is soft and insulative, with a four-way stretch providing a close fit. The Thetford is the answer to non-waterproof cycling footwear, keeping feet aerated and dry.

Sealskinz's own words, read from their page.

Buy from SealskinzPrice seen 2026-09-15. Not an affiliate link, we earn nothing from it.

Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.

UK company
Registered at Companies House as SEALSKINZ LIMITED, number 04925632. Checked 2026-08-29.
Means the business is a British legal entity, not a British-sounding name owned elsewhere. It says nothing about where anything is made.
UK operations
Not yet checked.
Means people employed here, or premises they actually work from. We keep this separate from the company badge because a registered office can be an accountant's spare room, and a company can be registered in Britain while everything it does happens somewhere else. Where we have not looked, we say so rather than assuming.
British-owned
Not established. Many companies file a statement rather than naming a controlling shareholder.
Read from the register of people with significant control, following the chain of holding companies. It does not gate anything: a firm can be made here and owned elsewhere, and that is worth telling you rather than hiding.
Where it is made
The maker doesn't say, so neither do we.
This is about the individual product, not the company. A British firm can sell things made abroad, which is normal and not a criticism. We would rather tell you which is which than average them into a score.