The Fabric Library
Where every trial begins.
Most brands mention material sourcing once, in fine print. We're starting here instead — because it's the whole reason Under Trials exists.
Most brands mention material sourcing once, in fine print. We're starting here instead — because it's the whole reason Under Trials exists.
"We do not think a garment's fibre is a footnote. It is the first decision, and the one we spend the most time on before anything is cut or sewn."
Sicily produces roughly 700,000 tonnes of citrus by-product every year — peel, pulp and pith left over once the juice is pressed. Orange Fiber, an Italian textile innovator, developed a process that extracts cellulose from this waste and spins it into a silky, breathable yarn.
We blend it with organic cotton for a base layer that's soft against the skin from the first wear, with none of the water and land intensity of a virgin fibre grown solely for textiles.
Grown in the foothills of Uttarakhand, hemp needs a fraction of the water cotton does, restores rather than depletes the soil it's grown in, and asks for no pesticide along the way. Its raw fibre is coarse — so we're working with regional mills on a softening and blending process that keeps the durability without the roughness.
Still in trial: we won't offer it for sale until it meets the same next-to-skin comfort standard as everything else we make.
The elastic in most undergarments is spun from synthetic latex — cheap, plentiful, and not particularly kind to the skin or the planet. Ours is tapped from rubber trees grown on smallholder farms in Kerala, following the same low-impact harvest method used for centuries.
It gives the same reliable stretch and recovery you'd expect, biodegrades far more readily at end of life, and keeps a piece of the supply chain rooted in India.
Every style we ship carries the fibre story behind it — origin, mill, and the trial it passed to get there. If we can't trace it, we don't use it.
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