KOSEL got its name ten hours before I rode out of a farmyard in Sturminster Newton with a phone on the handlebars. Forty-eight hours after the name, there was a shop. It has nine things in it now, and at least £10 from every one goes to The Wave Project, the surf therapy charity that started at Watergate Bay, a couple of miles from the beach where my ride finishes.
So it's a fair question. Why should anyone care about a clothing brand that's younger than the milk in their fridge? I'd ask the same.
KOSEL is a Cornish clothing brand built with Claude in 48 hours, for people who go in the sea when it's grey.
What does KOSEL mean?
Kosel is the Cornish word for calm. The dictionaries also give quiet and still, and one of them gives deadpan, which I'm taking as a sign (Omniglot, Glosbe). You say it koz-el, and if you say it wrong you're still in.
Most sea brands borrow their words from Hawaii or California, and this coast already had one of its own. Calm is also what the sea does to a head full of noise, which I know a bit about. I've got ADHD and I'm autistic, and the sea and a bike on an empty lane are the two places mine goes quiet.
Which UK clothing brands donate to mental health charities?
KOSEL gives at least £10 from every garment to The Wave Project, a surf therapy charity that supports young people's mental health and wellbeing. The figure is on every product page. The charity is the point of the whole thing.
Most tees are £29.99. Each one is printed when you order it, one at a time, which costs more than a factory run, and the price still leaves at least £10 for the charity. It can be more, depending on shipping and tax where you are. The tree camo tee is £36.99, the crewnecks £45.99 and £49.99, and the hoodies £59.99 and £65.99, with the same £10 floor under all of them.
The Wave Project puts the cost of a surf therapy course at £860 per young person, on average (impact report). In KOSEL terms that's 86 garments' worth. I'd want to see that sum if I was buying, so there it is.
KOSEL isn't the only brand doing this, and it's the smallest. Seasalt had raised more than £1 million for Mind and partner charities by May 2025 (Cornish Times). Saltrock committed £200,000 over three years to The Wave Project in June 2026 (North Devon Gazette). Those are bigger numbers than mine. What KOSEL adds is a stated minimum on every single garment, so a hoodie that donates to charity tells you how much before you buy it.
Whoever you buy from, look for two things before you believe a charity claim: the charity's name with a registered number you can check, and the amount per item in pounds. "A portion of proceeds" could mean 1p. The Wave Project's number is 1163421, and you can look it up on the Charity Commission register in about a minute.
If you'd rather skip the tee and give straight to The Wave Project, do that. I won't take it personally. I've written separately about why I picked them and which other brands back them.
Is KOSEL a surf brand?
No. It's a people-who-go-in brand.
It's for the person who gets in when everyone else is checking the weather app. The one who surfs badly, or not at all, and has made peace with that. The one who already owns the Finisterre and the Patagonia and fancies something louder. The one who'd rather be the odd one than the beige one.
Those people are the Lineup: the ones sitting out the back where it's quiet, waiting for a set. You join by going in. There's no form, and no fee beyond the cold.
The only thing KOSEL is against is ordinary. Beige, mostly, and looking at the sea from the car.
What's on the clothes?
Not much, on purpose. There's a GO IN. tee, a tee and a crewneck with the meaning on, a fleece hoodie, a vintage-wash zip hoodie, and a tree camo tee that breaks my own rules. Mostly it's one word, KOSEL or GO IN., in a loud orange on a washed, quiet garment. No wave in the logo, no sunset, no surfer, no palm tree. Plenty of sea brands need a picture to explain themselves. KOSEL gets by on a word and the conversation that starts when someone asks what it means.
The only symbol is a small tag: Cornwall's flag, St Piran's white cross on black, with KOSEL along the arm.
Is KOSEL a Cornish clothing brand?
Yes, with one confession. The name is Cornish, I live here, the ride ends here and the charity it gives to started here. The clothes aren't made here, though. They're printed to order, one at a time, which is why delivery takes 10 to 14 days. I'd rather you heard that from me than from the tracking page.
Cornwall already has proper clothing brands. Seasalt is a Cornish fashion company. Finisterre started in St Agnes making kit for cold-water surfers. Mor Clothing in Bude gives 5% to Surfers Against Sewage. KOSEL is the newest and the loudest of them, and as far as I know the only one built on a bike.
If you came looking for brands like Finisterre because you need technical kit for the cold, buy Finisterre. KOSEL is the loud thing you pull on afterwards.
What should you wear after a cold-water swim?
Whatever goes on fastest with numb hands. Get dry, get layers on, hat on, warm drink. Outdoor Swimmer covers robes and coats properly (guide), and the RNLI's advice is worth reading before you go in at all.
Once the robe comes off you still have to live in something for the drive home, sat with the heater on full, steaming gently. This is the part nobody photographs. For me that's a heavy hoodie, preferably with something loud on it, because Cornwall in February doesn't need help being grey. If you searched for a sea swimming hoodie, this is the kind you wear afterwards. The neoprene ones are for swimming in.
If you're after a gift for a cold-water swimmer who already owns the robe, the flask, the gloves and four bobble hats, this is the thing they haven't got. It's printed when you order it and takes 10 to 14 days, so if it's for Christmas, order by the start of December. Returns are within 14 days, you pay the postage back, and there are no swaps, just a refund and a fresh order.
Can loud colours help on grey days?
I can't prove orange fixes February. The articles about "dopamine dressing" are big on feelings and light on studies.
My claim is smaller. The orange is lifejacket orange, chosen to be loud, so in a Cornish car park in November you'll be the easiest person to spot. If it cheers you up too, thats a bonus I'm not charging for.
Who's behind KOSEL?
Me, Jim Edmondson. I live on the north Cornish coast and run PressWhisper, a PR platform. I also co-founded AVRE, a heritage workwear brand that gives its profits to veterans' charities. KOSEL is the first brand I've built on a bike, with Claude as the only tool while I was riding. I'm also the one who'll be on the beach at Mawgan Porth on Monday, saying the sales number out loud, whatever it is.
Are there any KOSEL reviews yet?
No. It's days old, and I'm not going to make any up. What you can check today is the boring stuff: the price on the page, the 14-day returns, the charity's registered number (1163421), and the fact that the person answering the emails is the person who built it.
The reviews I'm hoping for are people in the kit, in the sea, in bad weather, tagged. The worse the weather in the photo, the more I'll believe it.
So why should anyone care?
You don't need another T-shirt. Nobody does.
KOSEL is selling permission: to be the loud one on a grey beach, and to stop apologising for being a bit odd. The T-shirt is just how it gets to you, and the £10 is why it's worth getting.
It was built in public, in 48 hours, and you can see the joins if you look. I'd rather you saw them.
Loud on the outside. Kosel on the inside.
Where do you get it?
kosel.shop. Nine things, from £29.99 to £65.99, printed to order and sent anywhere. Questions get answered by me, usually faster than the printer.
If you don't fancy one, go in anyway.