The first material decision was the most important one.
We considered titanium for its weight. Sterling silver for its warmth. Surgical-grade 316L stainless steel won on every front that matters for something you wear on your skin, next to a medical device, every single day.
316L is used in medical instruments and high-end watches. It resists corrosion from sweat, moisture and daily wear. It is hypoallergenic, and carries a weight and density that makes the bracelet feel intentional the moment you put it on.
Our bracelet was independently tested for nickel release according to EN 1811 and EN 12472. It passed.
This is not a material we settled for. It is a material we chose because nothing else met the standard.