Thread Report
Whistles Shirt Fabric Composition.
We analyzed 12 shirt products from Whistles. At 79.8% average natural fibre, shirts are one of Whistles's better categories — 10.6 percentage points above their overall average of 69.2%. Cotton is the most common fibre in Whistles shirts, found in 50% of products.
Top Fibres in Whistles Shirt
How Whistles Compares — Shirt
Average Natural Fibre % by Brand
Monthly Thread Reports
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Frequently Asked Questions
What are Whistles shirts made of?
Across 12 shirt products from Whistles, the average natural fibre content is 79.8%. This is above Whistles's overall average of 69.2%.
Are Whistles shirts good quality fabric?
At 79.8% average natural fibre, Whistles shirts are among the better options. Higher natural fibre content generally means better breathability, durability, and less microplastic shedding.
Should I buy shirts from Whistles?
If fabric composition matters to you, Whistles shirts average 79.8% natural fibre. Use the Fibr browser extension to check individual items while shopping — fabric quality varies widely even within one category.
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