The smart read on Sustain by Kat
transparency
Every recorded entry, with its finding
| # | Style | Stated composition | Class |
|---|---|---|---|
| 001 | Organic Indigo Leaf Dyed Jean Shorts | cotton | Plant |
| 002 | Specialty Organic Cotton / Natural Rubber Elastic | cotton | Plant |
| 003 | Organic Plant-Dyed Fabric - Multicolor Stripes | cotton | Plant |
| 04 | |||
| 05 | |||
| 06 | |||
| 07 | |||
| 08 | |||
| 09 |
Instant fibre check
free · no loginChoose a fibre to see its class and whether it appears in Sustain by Kat’s recorded styles.
Checked against all 74 recorded styles in this listing.
Choose what you want to inspect in Sustain by Kat’s record. This filters recorded findings; it does not assess clinical safety.
Recorded findings for Sustain by Kat
The first 3 recorded entries are shown in this preview.
- Organic Indigo Leaf Dyed Jean Shorts · cotton
- Specialty Organic Cotton / Natural Rubber Elastic · cotton
- Organic Plant-Dyed Fabric - Multicolor Stripes · cotton
A missing match in this preview does not establish absence from the full record. Open the full record
About Sustain by Kat
Owner · Kat Quigley is the owner of Sustain by Kat.
Sustain by Kat, a small Los Angeles brand founded in 2016, uses GOTS certified organic cotton and 100% plant-based natural dyes, and states every garment component (down to elastic and thread) is organic. Good On You rates it ‘Good’ (Planet 4/5, People 3/5, Animals 4/5) and notes it partly traces its supply chain including the final and some second production stages. However, Sustain by Kat does not publish an aggregate supplier breakdown or a named factory list, and there is no evidence of living-wage assurance.
Where Sustain by Kat isn’t perfect
This part is for members
Create a free account to read the verdict and the sources behind it. Three full reports free every month.
Create free accountAlready a member? Log in · unlock this one
What we read and checked
Read the evidence and its qualifications alongside each finding.
Recorded features & ownership
Sustain by Kat states its fibres are 100% natural and organic, with cotton that is 100% organic from the fabric to the labels to the thread, and linen that is 100% natural and organic made from flax plants. The Sustain by Kat…
GOTS certified organic cotton (also uses linen, with hemp planned); every component organic (fabric, elastic, cotton sewing thread)
Not disclosed (small brand; final production in low-risk or certified facilities per Good On You)
Rather than petroleum-based dyes, Sustain by Kat colours its natural fibres with plant-based natural dyes including pomegranate peels, oak galls, rhubarb, myrobalan, madder root, fusticwood, logwood and indigo leaf.
What the sources support
Not in the official GOTS database (checked 14 August 2026); GOTS-certified organic cotton via small suppliers (material level). Brand-attested. · Checked 2026-08-14
Sustain by Kat clothing brand does not maintain OEKO-TEX® Standard 100 certification.
Sustain by Kat clothing brand is not a member of 1% for the Planet.
Sustain by Kat clothing brand is a vegan clothing brand.
Care, repair & end of life
Take-back or repair
0
Resale
0
Every field we hold on Sustain by Kat
The field values retain the source’s wording and qualifications. A preview is shown where the full report is not available to your account.
Straight answers
Up to 20% off eligible verified brands
Live member rewards rotate as brands are verified. A listing only receives its own code when an eligible offer is recorded.
Discounts on brands that earn their place
See current eligible codes from clothing, food, stays and more alongside the independent report that qualified each brand.
- The report stays independent of the reward
- Codes can rotate after every verification pass
- Premium keeps the rewards wall and every report open
Start with a free trial
Get full access now. Cancel before the trial ends and pay nothing.
Start my 3-day free trialCancel anytime · membership options shown before checkout
How Sustain by Kat compares across published ratings
These results are not interchangeable scores. Each source stays in its own published scale, with its actual scope shown beside it.
| Directory | Published result | What it measures or reports | Source date |
|---|---|---|---|
| Good On You ↗ | Good · 4/5 | Planet: Good · People: It's a start · Animals: Good | 15 Jun 2026Captured 24 Aug 2026 |
| The Throne Scan | 3/5 · Part natural | 74 eligible styles checked for stated fibre composition; 90.5% plant among recorded textile styles | 5 Sep 2026 |
External results are quoted from the linked directory record and are never converted into the Throne Scan scale.
Work out the real cost per wear
Use the price and realistic wear count to compare long-term value.
Cost per wear is the honest test behind "buy less, buy better": a £200 coat worn 300 times beats a £25 one worn 5 times. It rewards wearing what you own and choosing things built to last.
Where would you like to go next?
Last checked 2026-09-05 · verified · Ask us to rescan this listing