Sustainable at Heart — How SeaNic Does Things Differently
SeaNic is a small family business, run from Teignmouth in Devon, making organic cotton clothing and eco gifts by hand in small batches. Sustainable at Heart isn't a tagline we added after the fact — it's the question we asked before we made a single thing: what kind of brand do we actually want to put into the world?
The fashion industry is one of the most polluting on the planet. We knew that before we started, and it shaped every decision that followed — the materials we chose, the way we print, the packaging we use, the quantities we make. For us, sustainability isn't a marketing layer applied to the surface of the business. It goes all the way through.
This page explains what that looks like in practice, including where we're still learning.
Why Sustainability Isn't Optional For Us
Before SeaNic, I spent the better part of two decades working as an environmental professional. I have a degree in Environmental Engineering and a PhD in brownfield regeneration — essentially, studying what happens to land after industry has finished with it and the long-term consequences of getting cleanup wrong. From there, I spent six years at the Environment Agency, working on flood resilience, community preparedness, and environmental project management.
Earlier in my career, I saw the true impacts that industry can have on people and places first-hand, working in the field of urban regeneration and contaminated land — first as part of the Land Quality Management Research Group during my PhD at the University of Nottingham, then at the environmental consultancy Arup, and later working at England's Nationa Regeneration Agency (English Partnerships and the Homes and Communities Agency) including in the former coalfields of Yorkshire. These are landscapes where the decisions of previous generations — made without accounting for their environmental consequences — are still being lived with today. That experience stays with you.
I say all of this not to dress SeaNic in credentials it doesn't need, but because it explains something important: I find it genuinely difficult to look at a business decision without thinking about its environmental consequences. That's not a virtue — it's just how my brain is wired after years of working on problems caused by people and organisations who didn't ask those questions early enough.
When Nic and I started SeaNic, the sustainability question wasn't something we came to later. It was the starting point. The fashion industry is one of the most polluting in the world — I was aware of that before we made a single garment. Every choice on this page — the organic cotton, the water-based inks, the plastic-free packaging, the small batches — comes from a decision made at the outset: we didn't want to be part of the problem.
Organic Cotton — Better for Skin, Better for the Environment
Conventional cotton is one of the most chemically intensive crops in the world. It accounts for roughly 6% of global pesticide use despite covering just 2.5% of farmland. And according to our garment supplier Stanley/Stella, only around 1.4% of cotton produced globally is organic. Organic cotton changes that equation — but it remains very much the exception, not the norm.
All of our clothing is made by Stanley/Stella from 100% GOTS-certified organic cotton. Our t-shirts are printed on their pure cotton Creator 2.0, and across the rest of our Stanley/Stella garment range the same certification standards apply throughout. GOTS — the Global Organic Textile Standard — is the leading worldwide certification for organic textiles. It covers not just how the cotton is grown (without synthetic pesticides, fertilisers, or genetically modified seeds), but the entire production chain from raw fibre to finished garment. The organic claim doesn't stop at the farm gate.
The cotton sourced by Stanley/Stella comes from India, Turkey, and Tanzania — with Turkey and Tanzania both being non-GMO countries where genetically modified cotton seeds are prohibited by law. That's a level of supply chain integrity that goes well beyond what most garment brands can demonstrate.
The finished garments also carry OEKO-TEX Standard 100 certification, independently confirming that no component of the fabric contains substances harmful to human health or the environment. Combined with our water-based inks (more on those below), you're wearing something that's been held to a high chemical standard at every stage.
One more thing worth noting: Stanley/Stella products are 100% vegan and PETA-approved — no animal-derived materials, no animal testing, at any point in the supply chain. Something we're glad to be able to say.
Our hoodies are made on Stanley/Stella's Drummer 2.0 — a slightly different composition of 85% organic cotton and 15% recycled polyester, brushed for warmth at 280gsm. The recycled polyester isn't a shortcut; it's the right material for the job. A brushed hoodie needs some synthetic content to achieve the weight and durability that organic cotton alone can't deliver at this weight. The same certifications — GOTS, OEKO-TEX Standard 100, Fair Wear Foundation — apply throughout.
Sustainable Paper — Cards and Art You Can Feel Good About
Our cards and artwork bring a different material into the picture — paper and card — and we apply the same thinking here as we do to everything else: what's the most responsible option available?
All of our paper is FSC-certified. FSC — the Forest Stewardship Council — is the leading independent certification for responsible forestry, confirming that the paper we use comes from forests that are managed to protect biodiversity, workers' rights, and long-term ecological health. It's the paper equivalent of GOTS for cotton: independently verified, not self-reported.
Where we can, we go further and use paper with recycled content — giving material that already exists a second life rather than drawing on new resources. As a small business, we don't always have full control over availability, so we won't overstate this, but it's our default preference where the option exists.
Paper is often an afterthought in sustainability conversations about gifts and stationery. For us it isn't — it's a material choice, and it gets the same scrutiny as everything else we make.
Fair Trade — People Before Everything
People matter more than materials. Full stop. I've never wanted anyone to work in a sweatshop so I can sell t-shirts — it's as simple as that.
Our garments are produced through Stanley/Stella's supply chain, and Stanley/Stella has been a member of the Fair Wear Foundation since 2012. The Fair Wear Foundation is an independent organisation that works with clothing brands to improve labour conditions in garment factories — conducting third-party audits, assessing human rights risks, and working with factory management until corrective actions are fully resolved. It is independently audited, not self-reported.
That means the workers who sew our garments are covered by a framework of verified labour standards — on wages, working hours, and working conditions — that goes well beyond a brand simply stating good intentions.
We're a small business with a modest supply chain, which means we can be genuinely selective about who we work with. We'd rather make less and make it right.
Small Batch Production — Waste Reduction by Design
One of the most straightforward ways to reduce waste in fashion is to make less of it. Fast fashion's model — overproduce, discount, discard — generates enormous volumes of unwanted stock that ends up in landfill or incineration. We've built SeaNic to work in exactly the opposite direction.
We produce in small batches or to order, hand-printing each garment in our Devon studio. This means we never hold large volumes of surplus stock, we respond to what people actually want, and we avoid the waste that comes with speculative overproduction.
Small batch also allows us to maintain quality. Every piece is made with attention — not on an automated production line running thousands of units per hour. That's not a romantic idea; it's just a more sensible way to make things with love.
Water-Based Inks — Cleaner Printing from the First Stroke
Most commercial garment printing uses plastisol inks — PVC-based, petroleum-derived, and reliant on harsh chemical solvents to clean up after use. They sit on top of the fabric rather than bonding with it, and they don't break down. For a brand that starts with organic cotton, finishing with plastisol ink would be a contradiction we're not willing to live with.
And if plastisol is bad, stick-on vinyl is worse. It's cheap, it looks it, and it doesn't last — peeling and cracking long before the garment itself gives up. But the bigger problem is what it's made of. Vinyl heat transfer uses PVC, one of the most environmentally problematic plastics in existence. It releases harmful chemicals during production and is virtually impossible to recycle. Putting it on a garment that will eventually be washed, worn, and disposed of just distributes that problem further. We won't touch it.
We print exclusively with water-based inks. They contain no PVC, no phthalates, and no heavy metals. They cure at lower temperatures, which uses less energy in the printing process, and cleanup requires water rather than chemical solvents — meaning less harmful waste leaving our studio.
Water-based inks also produce a softer, more natural finish that works with the fabric rather than against it. If you've ever worn a printed garment where the design feels like a layer of plastic on the chest, you'll notice the difference immediately. The print becomes part of the garment, not something applied to the surface of it.
It's a technical choice that reflects the same thinking as everything else we do — if there's a cleaner option available, we take it.
Made to Last — Durability Is a Sustainability Statement
The most sustainable garment is the one you already own — and keep wearing. That's why durability isn't an afterthought for us; it's a design principle.
We use high-quality organic cotton that holds its shape, colour, and structure through years of wear and washing. Our hand-printed designs are applied with care and precision — not because we're precious about it, but because we want them to still look good many years from now.
Buying fewer, better things is one of the most effective sustainability choices a consumer can make. We try to make products worth making that argument for.
For more on how to get the most out of your SeaNic t-shirt, read our blog post: How to Make Your T-Shirt Last a Lifetime.
Plastic-Free Packaging — Right Down to the Last Layer
We've removed plastic from our packaging entirely. Our mailer bags are supplied by Priory Direct — a certified B Corp and the UK's leading supplier of planet-friendly packaging — through their Priory Elements range. They're 100% recyclable, plastic-free, ocean-friendly, sustainably sourced, and fully biodegradable. Priory Direct are also a carbon neutral company, with Scope 1 and 2 emissions under the Greenhouse Gas Protocol now accounted for, minimised, and offset, with a target of full climate neutrality by 2030. When we chose our packaging supplier, we chose one that takes the same approach to its own footprint as we take to ours.
One detail we're particularly pleased with: our cards and artwork are protected by a compostable PLA film certified to EN13432, the European standard for industrial compostability. Most sellers use conventional plastic sleeve protection — it's cheaper, and a few pennies saved per order adds up. We've never done that. PLA does the same job — protecting your purchase in transit — and breaks down properly at the end of its life rather than persisting as plastic waste. It costs more. We've always thought it was worth it.
It's a small detail that matters. Packaging waste is one of those things that's easy to ignore as a brand and impossible to ignore as a customer. We'd rather you receive your order in something you can put straight in the recycling or compost bin.
We're always looking for improvements as better alternatives become available, and we'll update our approach as the options improve.
We're a small family business, and we're not a perfect sustainability operation — nobody is. What we can promise is that every decision we make is filtered through a genuine commitment to doing less harm and making better things.
We don't buy carbon offsets as a substitute for actually reducing our footprint. We don't use "eco" as a marketing word while cutting corners elsewhere. And we don't make sustainability claims we can't back up.
If you have questions about how we make our products, what's in them, or where they come from, we'll answer honestly. Just get in touch. That's the kind of brand we set out to be.
Shop SeaNic — Clothes and Gifts You Can Feel Good About
Every product we make — from our GOTS-certified organic cotton t-shirts and hoodies to our FSC-certified cards and artwork — is made in small batches by hand in Devon, with sustainability at every stage. If you'd like to know more about how we make things, we're always happy to talk.
Written by Tony Leney, Co-founder of SeaNic