Sustainability & Sourcing

Last updated: 21 May 2026

1. Our Approach to This Page

This page is intentionally specific and modest. We are not going to tell you ROSTTYA is “sustainable” or “ethical” or “eco-friendly”. These words are used so widely in fashion, with so little definition, that they no longer mean much. We would rather explain in concrete terms what we do, what we don’t do, what we’re thinking about, and let you decide for yourself.

This page reflects the Competition and Markets Authority’s Green Claims Code, which requires environmental claims in commerce to be truthful, accurate, specific and substantiated. Where we do not have evidence to back up a claim, we don’t make the claim.

2. Where Our Shirts Are Designed

Every ROSTTYA shirt is designed in London by our small in-house design team. Design encompasses pattern-making, fabric selection, fit decisions, and the choices about cut, finish, button and stitch detail that make each shirt feel considered rather than mass-produced.

3. Where Our Shirts Are Manufactured

Our shirts are manufactured at partner workshops in China. We are open about this because the established quality of Chinese garment manufacturing for the cotton and linen shirt category is, in our honest view, often higher than the lower-cost European alternatives in our price band.

The specific country of manufacture is disclosed on the care label of every garment and on every product page. Where we change manufacturing partner or country for a future collection, that change will be reflected on the product page and care label for that collection.

We do not dropship. We do not resell wholesale lots. We do not stock unbranded third-party items and rebrand them. Every shirt offered on rosttya.com is an original ROSTTYA design, manufactured to our specification at partner workshops we work with directly.

4. The Fabrics We Use

Our shirts are made primarily from three fabric families:

• Cotton: the everyday foundation. Breathable, easy to care for, holds its shape well after laundering when treated according to care instructions
• Linen: used for warmer-weather shirts. Has a characteristic crisp drape and slight texture; creases easily, which is part of its honest appeal
• Cotton blends: used where we want to combine the softness of cotton with a specific drape or wrinkle-resistance characteristic. The exact composition is stated on every product page (for example, “70% cotton, 30% linen”)

We do not at present use polyester, recycled polyester, lyocell/Tencel, viscose or silk in our shirts. If we add new fabrics in future collections, we will update this page and disclose composition on each affected product.

5. What Every Product Page Tells You

On every shirt’s product page, we disclose:

• Exact fabric composition (e.g. “100% cotton” or “70% cotton, 30% linen”)
• Country of manufacture
• Care instructions
• Model height and the size worn in the photographs
• Garment measurements in centimetres for each available size

This level of disclosure is, in our view, the most honest substitute for the vague “sustainable” or “ethical” badges sometimes seen elsewhere. You see what the shirt is made of, where it came from, how to look after it, and how it will sit on you.

6. What We Don’t Do

It is sometimes more useful to say what a brand does not do than to list aspirational adjectives. The following list is honest and current as of the date of this page:

• We do not airfreight stock. Our shirts arrive in the United Kingdom by sea freight, which has a lower carbon intensity per unit than air freight. We are not, however, claiming that we are “low carbon” or “carbon neutral” — those are larger claims we are not in a position to substantiate
• We do not produce fast-fashion volumes. Our seasonal drops are intentionally small, in the low hundreds of units per design rather than thousands
• We do not deeply discount unsold stock at end-of-season to clear it through outlet channels. Where stock does not sell in its first season, we hold it for the next appropriate season
• We do not bulk-procure unbranded shirts from suppliers and apply ROSTTYA labels. Every shirt is designed by us, to our specification
• We do not use plastic bags or polybags for individual shirt packaging. Each shirt is folded with a thin tissue separator and dispatched in a paper-based mailer

7. What We’re Thinking About

We are at an early stage as a brand. The following are areas we are actively examining but have not made firm commitments on. We mention them here for honesty rather than to claim credit:

• Whether to add a take-back or repair programme for shirts that wear out after several years
• Whether the increased cost of organic cotton or BCI-certified cotton is worth the price impact for our customers in our specific price band
• How to make sourcing decisions more transparent at the workshop level, beyond just the country of manufacture, without misleading customers about the limits of what any single brand can verify
• How our packaging supply chain can be further simplified — the current paper-based mailer is one step, not the destination

If and when these become real, specific decisions or commitments, we will update this page accordingly.

8. The Care Conversation

The longest-lasting impact you can have on the sustainability of any garment you own is to wear it for longer and wash it less aggressively. A shirt washed at 30°C, line-dried, and ironed when needed will last considerably longer than the same shirt subjected to hot wash cycles and tumble drying. Our Size Guide & Fit page includes specific care recommendations for cotton and linen shirts.

If a shirt does need repair, we recommend a local tailor or alterations service rather than disposing of it. We do not currently offer in-house repair but this is one of the areas under consideration in clause 7.

9. Returns and Their Environmental Impact

Returns are a real impact area for any online brand selling clothing — return shipping, repackaging, and the small percentage of returned items that cannot be resold all contribute. We try to reduce returns at source by:

• Providing detailed garment measurements on every product page (not just body size labels)
• Disclosing model height and size worn so you can visualise the fit
• Offering free email-based size advice from hello@rosttya.com
• Refunding return shipping on exchanges for a different size of the same shirt (this is set out in our Returns & Refunds Policy clause 4)

10. Contact and Feedback

If you have a specific question about a fabric, a workshop location, a manufacturing decision, or anything else on this page, email hello@rosttya.com. We aim to reply within 1 working day with a substantive answer or, if we need to investigate first, an honest acknowledgement that we don’t yet have the answer.

If you spot something on this page that reads as marketing language rather than a substantiated factual statement, please tell us — we would rather rewrite the page than leave a misleading claim live.

11. Contact

ROSTTYA LTD
5c Forster Road
London, N17 6QD
United Kingdom
Email: hello@rosttya.com
Phone: +44 7972107661

ROSTTYA LTD is a company registered in England and Wales, Company Number 16632288. The sole director is Rostislav Dimitrov Rusinov.