Thread Report
How Much Polyester Does Whistles Use?
Polyester appears in 12% of Whistles products (6 out of 50). While not their primary fibre, it's present in a notable share of the range. When polyester is used, it makes up an average of 18% of the garment's composition. It's usually blended with other fibres rather than being the primary material.
Polyester Usage Across Brands
Monthly Thread Reports
Get reports like this in your inbox.
We analyze thousands of products every month. Be the first to see new Thread Reports — fabric data nobody else publishes.
No spam. Unsubscribe in one click.
Frequently Asked Questions
How much polyester does Whistles use?
Polyester appears in 12% of Whistles products. When it is used, it typically makes up 18% of the garment's fabric composition.
Does Whistles have polyester-free clothing?
88% of Whistles products in our database do not contain polyester. You can use the Fibr extension to identify these items while shopping.
Is polyester in Whistles clothing a problem?
Polyester is a synthetic fibre that sheds microplastics when washed and does not biodegrade. It appears in a minority of Whistles products.
Related reports.
Stop buying plastic by accident.
Fibr shows you what every garment is actually made of before you buy it. Green means natural fibre. Red means plastic.
Add to Chrome — It's freeFree forever. No account, no data collected, nothing to lose.