Slate Pocket T-Shirt / SeaCell™ Cotton

HebTroCo

£40

Yes it s a t-shirt made with seaweed but you won t smell like a fish don t worry. 185gsm jersey, same as our other nicely mid-weight t-shirts but this time it s 70% cotton and 30% seaweed/wood pulp. Made in Manchester. We chose this cloth because we re interested in trying alternative fibres the sustainability credentials on this one checks all the boxes. Tap here or scroll down to read more about it. /*! elementor v3.13.3 22-05-2023 */ .elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$= .svg ]{width:48px}.elementor-widge

HebTroCo's own words, read from their page.

Buy from HebTroCoOut of stock. Price seen 2026-09-05. Affiliate link.

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 HEBTROCO LTD, number 09958194. 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
No majority shareholding traced outside the UK. Companies House.
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.