Every listing read fibre by fibre against the stated composition. Where a garment states no percentage, it is recorded as undisclosed rather than assumed.
Sleeper is 35.6% pure plant fibre across 196 clothing styles read from its own catalogue. The remainder is 7.9% synthetic, 13.1% blended, 38.2% semi-synthetic, 5.2% animal fibre. Every figure is read from Sleeper’s live product pages, style by style, with no sampling.
The full product-by-product breakdown of all 196 products scanned, with the fibre in each one, is free with an account.
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