Here's the clever bit.
Two yarns are twisted together - one cotton, one water-soluble.
They're heat-set to hold their form.
Then, during the wash, that second yarn disappears.
It leaves air pockets inside the cotton.
That trapped air changes everything.
It makes the denim lighter, softer, and more breathable - without losing its strength.
It moves with you, without a single fibre of stretch.
And because it's still 100% cotton, it fades and ages just like a traditional pair of jeans should.