
butter hemp®
One mission: to become the lightest and softest Hemp fabric.
the impossible fabric
Butter Hemp is the lightest Hemp fabric in the world, with the highest Hemp percentage (96%).
We achieved this record thanks to a breakthrough technology that makes the thinnest Hemp yarn compatible with modern weaving machines.

so beautiful it seems like a lie
The image is a microscopic enlargement of the hemp fiber used in Butter Hemp®. We have had it analyzed several times by an independent laboratory because more than once, enthusiasts or competitors suspected it was not hemp. Indeed, it is such a light and soft fabric that experts do not understand how we managed it.

the nature, exclusively ours
The Zero color, undyed, of Burro Canapa® is an exclusive of Opera Campi. Seriously, no one else in the world does this!
And there’s a very specific reason: fashion brands have always rejected the natural hemp yarn’s irregularities and tiny black spots for aesthetic reasons. As a result, since 2024, hemp growers and spinners have stopped producing the natural-colored yarn.
So we stepped in: we purchased all remaining reserves of natural yarn for Burro Canapa®. It will last us for a while, and as long as it does, we’re the only ones who have it.
why hemp?
There are precise reasons why we consider Hemp the most sustainable and versatile fibre.

thermo regulation
Hemp is excellent in all seasons thanks to its thermal property that retains heat when necessary and allows breathability when it's warm. Compared to cotton, polyester, and linen, it covers a wider temperature range. There is a specific scientific reason behind this magical thermoregulating property.

planet lungs
Hemp is the fibre with the highest CO2 absorption rate. Imagine how much impact there would be if huge cotton plantations would be replaced by fields of Hemp. We would have powerful planet lungs.

water and pesticides saving
Hemp requires 80% less water than cotton during its cultivation. Because Hemp requires less water, usually no extra irrigation is required.
Hemp usually requires no pesticides, whereas cotton is one of the planet’s most pesticide-intensive crops.

antiodor
Being anti-fungal and anti-microbial, Hemp is naturally resistant to odors. It's truly magical how it can often stay completely odor-neutral after several days of wearing.

softer
While cotton degrades over time, hemp threads turn softer. Washes will make them increasingly soft, because they round the right angle yarns, without breaking them.

durable
According to scientific studies, hemp is the most durable natural textile, namely it withstands more washes than linen and cotton. Its durability is proven by so many century-old fabrics we have found, dating back to 1700.

are you sure it's hemp?
True hemp is hard to find. It is often mixed with cotton or mistaken for ramie (a nettle). Advanced laboratory tests have left no doubt about the quality of our Hemp: it has excellent fineness and it is pure hemp. We are the only brand that exposes the composition of its yarn with tests that follow the standard methodology Reg. EU 2011/1007 ISO 1833.
Discover the curious anecdote of Hemp that didn't look like Hemp