Outsider sells 27.7% wool, 21.5% organic cotton, and 4.6% linen across its 65 styles, with 29.2% undeclared. It markets itself as ethical natural-fibre fashion since 2009, but only 26.1% is natural plant fibre. Read the full report.

Older Brother sells 80% organic cotton, plus hemp and cotton blended with natural rubber across its 70 styles. It markets itself as fully natural, plant dyed slow fashion, but only 85.7% is natural plant fibre. Read the full report.

MUD Jeans sells 43.2% organic cotton, 18.9% pure cotton, and a hemp and cotton blend across its 74 styles. It markets itself as circular, plant-rooted denim, but only 63.5% is natural plant fibre. Read the full report.

LA Relaxed sells 64.6% organic cotton, 18.8% linen, and a tail of elastane and polyester blends across its 48 styles. It markets itself as natural, plant based clothing, but only 89.6% is natural plant fibre. Read the full report.

Known Supply sells 79.1% organic cotton, 9.2% cotton and synthetic blend, and 4% pure synthetic across its 273 styles. It markets itself as ethical organic cotton, but only 79.9% is natural plant fibre. Read the full report.

Hempalaya markets itself as a pure Himalayan hemp brand, but it is not the clean pass the name implies. Hold The Throne scanned all 41 of their live styles, and while none are plastic, only 43.9% is actual plant fibre, the rest is wool, hemp blends and an unnamed bamboo viscose band.

GROCERIES sells organic cotton, hemp and cotton, and a fifth in recycled polyester, elastane and semi-synthetics across its 51 styles. It markets itself as nontoxic and organic, but 80.4% is natural plant fibre. Read the full report.

Frockk sells 34.7% cotton, 32.7% unstated, 16.3% wool and cashmere, and 16.3% linen across its 251 styles. It calls itself natural fibres only, but only 51% is confirmed natural plant fibre. Read the full report.

Fair Indigo sells 63.9% organic cotton, 34.9% cotton and spandex, and 1.2% animal fibre across its 83 styles. It markets itself as fair trade organic cotton, but only 63.9% is natural plant fibre. Read the full report.

Community Clothing sells 54.3% cotton, 16.8% organic cotton, 9.8% unclear blends, and 9.5% wool across its 328 styles. It markets itself as natural, biodegradable and British-made, but only 72.3% is natural plant fibre. Read the full report.