Isadore
| Category | Score | % | Callout |
|---|---|---|---|
| Carbon & Emissions | 0 / 20 | 0% | ⚠ Gap |
| Nature, Biodiversity & Materials | 9 / 20 | 45% | — |
| People & Supply Chain | 11 / 20 | 55% | — |
| Business Ethos & Governance | 3 / 15 | 20% | ⚠ Gap |
| Transparency & Accountability | 3 / 10 | 30% | — |
| Clothing Category | 7 / 15 | 47% | — |
What Isadore does well
Isadore is widely regarded in the cycling community as a brand operating under genuine ethical principles, and this assessment reflects that in its supply chain scores. The Slovak founders have built an unusually transparent manufacturing picture: seven factories are named publicly, and for each product in the range the brand publishes where the raw material was grown or produced, where the fabric was milled, and where the finished garment was made. Over 88% of production takes place in EU member states, including a long-standing partnership with a factory in the founders' home town. The brand completed a full transition to PFAS-free waterproofing treatments across all products in 2025, ahead of incoming EU regulatory deadlines.
Where the gaps are
Where the score is held back is carbon: zero points across all five carbon sub-criteria. This is not a case of the evidence being buried — the brand has confirmed publicly that it does not currently have the resources to measure and communicate its emissions. Carbon represents 20% of the total available score under our framework. No B Corp, no structured sustainability report, and no formalised charitable giving are the governance gaps. The carbon gap reflects a resource and maturity constraint typical of a brand at Isadore's scale rather than a question of intent.
Verdict: Isadore is rated Listed under the Ethical Endurance Framework. Supply-chain transparency is very strong — production is well documented down to factory and material origin — but the absence of any published carbon data is the main factor holding back a higher score.
See how Isadore compares. This profile is one of several assessments in our Sustainable Cycling Clothing Buying Guide, or browse the full Brand Directory to search and filter across every brand we've assessed.